Showing posts with label movement assessment. Show all posts
Showing posts with label movement assessment. Show all posts
Friday, May 7, 2010
Muscle Cramps in Calves when Running in Vibram FiveFingers: what is it, what causes it and what can be done about it?
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Runners Cramp - Calves cramping - it's AWFUL. In talking with folks who run in VFF's it seems that one usual side effect initially at least is that, when picking up the pace in VFF's (perhaps especially up hill), calves may start to cramp up. Guaranteed, if we keep going with this run, once that cramp starts, the calf or calves will turn to unyielding, painful rock. What can be surprising is how quickly into a run this seize up can happen. What the heck is going on, and what might help stop it from happening.
There could be lots going on, so i'm not trying to be comprehensive and exhaustive - not sure that's possible. The goal of this post is to look at pain generally, muscle cramps in particular and what's hypothesised about causes, introduce a newer model not seen in web discussions of cramp, and propose a refinement for that model. Finally, some practical suggestions of getting out of that cramp while heading to barefoot running freedom.
Pain is a signal for Change
Based on work in pain, and as summarized in work by David Butler like the plain language Explain
Pain
, pain is a signal for change; pain does not necessarily, however, equal injury, and the site of pain is not always the source of pain; treating the site of pain therefore can be a losing proposition.
I've used the analogy of a car oil gauge regularly reading low. One solution is to top up the oil in the engine so that the gauge reads the right level. That level will only last short term and needs to be repeated regularly - and in the interim, what related problems might be developing from such regular loses?
Another solution is to do a diagnostic to find out what else might be going on - like a leak in the engine block where actually a bolt may simply need to be tightened (or an entire gasket in the block replaced - can you tell i'm having flashbacks of stripping the head of an engine in the middle of the bush on an old carola. never mind; i digress). The point is, getting away from site = source often leads to better results.
In the car analogy, finding a more fundamental issue, performing a wee tweak and testing if that tweak will work means that the oil level stays where it's supposed to be for as long as it's supposed to be there. Both approaches are a kind of solution; the benefits on the system and the wallet are better in the latter case.
What's a Cramp in the Calves Anyway?
So taking the above pain thesis into account, what does this mean for the calves rock effect?
What's a Cramp? A cramp is an involuntary and intense contraction of a muscle. What causes a cramp is a subject of much discussion, and poorly understood. A quick check on the web doesn't get at too much about why this contraction occurs.
WHy a cramp? The usual checks: electrolytes, hydration, low carbs, tight muscles to begin with are offered up not as reasons, but of things somehow thought to be related to cramping. Here's an examplary summary of that kind. In this model, the thesis seems to go, the muscles don't have the chemical materials needed to fire in that working limb properly so they effectively rigor mortis up. This rationale for cramp has been more or less tossed out as demonstrated here in 04, and as summarised in this recent BMJ review article. First, on dehydration:
Here's another view of cramps by Luke Hoffman that could be written for VFF runners:
The above describes what might be called "voluntary contraction" - not quite the same as involuntary. If we take the above council about voluntary cramps to bear, however, what should be the case is once a cramp starts, we should stretch it out, and wait for the fatigue to pass from that contraction, and recover, and really stop doing what we were doing - running on the forefoot. Consequently, Pose & VFF runners who run on the forefoot should be cramping all the time. And if we believe work in barefoot running, this is rather how we're designed to run. So, hmm, maybe not.
None of these explanations therefore is complete it seems, to explain cramping we see in the calves that comes on unexpectedly, as lots of well fed, well hydrtated, well electolyted people who stretch still get cramps, and these weird cramps in VFF's in particular.
So why does this cramp only happen *some* of the time - especially if all the typical niceities of cramp avoidance are observed? For me, for instance, it happened first when i started practicing actually bringing the heel of the foot down more (extending the calf) when running, rather than staying up on the forefoot. So, maybe it's not (entirely) about the calves?
Altered Neuromuscular Control. In the research one of the explanations around cramp is: maybe the muscle is just not strong enough to do what is being asked of it, for the duration it's being asked to operate at this level - hence fatiguing - and it's that fatigue that is setting up EAMC: exercise-associated muscle cramping. This hypothesis, also known as "altered neuromuscular control" was first proposed in 1996, so that's how new this stuff is. A key part of this model is that the neuromuscular control issue is located in the SPINE, not at the site of the issue - the site is paying for what's going on at the source.
So in the Pain as Signal to Change perspective, cramps are painful; they are a signal to change. The altered neuromuscular control model suggests, stretch it out and recover. Related work suggests, improve strength/stamina to reduce fatigue and reduce this muscle cramp response. Both have in common that fatigue is causing neural level loss of appropriate control.
Wildly Hypothesising? What's going on when this particular response occurs well before one would think a muscle used to running for miles and miles starts to go all crampy?
In
work pionered by LeDoux in the nineties
, he showed that the brain processes emotional responses like fear/threat without the conscious brain being involved. It happens fast, at a low level, without cognitive involvement and has immediate chemical consequences in the system (nice review of this and related work here by Ohman, 2005). In other words, perhaps there's some other *thing* happening in the sensory-motor exerperience that is saying "not good" and the result is this fatigue-like chemical messaging system that sets off early light cramp signals - that if ignored will just get louder until one is forced to change patterns.
In Z-Health, Eric Cobb translates this fear response into the nervous system's job to perceive threat or no threat: if there's a perception of threat, the system starts to shut down (example in arthrokinetic reflex). What might be the threat ocuring in VFF ocaisional calve cramping? The system may be literally putting on the breaks to what it perceives as a threatening to it's well being practice.
It's easy to see that if the nervous system perceives that the task - going at a particular speed in a particular way - is causing part of the system to be over-taxed, it's going to respond to that as a threat or non-optimal situation, and if it takes pain to get change, well, whatever it takes.
Personal Experience. Taking a Z-Health approach to this experience, i think i've learned to become more alert to any pain signal my bod sends up in an athletic effort. So in this case, if and when these cramps begin, they usually start with a very mild "uh oh" twinge of "about to turn to rock if you don't respond."

There are two simple things that z-health suggests for rehabbing a movement with the cue of "never move into pain:"
Guided by the Nose: run to pace inhalation. Another technique i've been using and coaching to help head off cramps and adapt to barefooting generally is to explore gaiting running speed with ability to stay breathing in through one's nose. If running at a clip where i have to mouth breath, i slow it down (i find if i hit that level, it's pretty hard to get it back to nose inhaling). This approach is just one way at least some of the time to practice running reps quality rather than overdriving the other parts of the system.
Deeper Tune Up: Starting from the Source
So we've seen one theory in the research is around muscular fatigue inducing EAMC; getting stronger in those areas where muscles cramped seemed to help. In one study. That's great. Another possibility - that can lead to faster fatigue - is if there's some kind of issue in one's movement that is causing perhaps other muscles to compensate for other weaknesses, and causing fatigue/pain/signaling in the calves faster that should happen for that group. So while a solution may be to do extra strength work, maybe a faster solution may actually be to look at one's movement as a whole.
In other words, the calves may be plenty strong IF everything else is firing up appropriately, but they may be being asked to super compenate for other stuff, that if those other movement issues were addressed, wouldn't cause the problem.
There's value therefore in (a) having a movement assessment and (b) practicing dynamic joint mobility and sensory-motor work to ensure great movement, and ability to maintain great, clean movement.
Summary: Avoiding Running Cramps in VFF's
Based on the latest research, EAMC cramps are about temporary loss of clear neuromuscular control. The best model so far to explain this effect is fatigue. A known way to work out a cramp is to lengthen the muscle. There may however be other approaches that just haven't been researched that also seem to work. The hypothesis here is that these approaches are dealing with neurological signaling, too, taking advantage of the sensory-motor system.
Some pragmatic responses therefore if cramp occurs are:
During a Run: Assuming one is not dehydrated, de-electrolyted, or have squirrels biting their calves while running,
And before That
Consider a movement assessment to check for what Gray Cook calls "weak links" so as not to build strength on top of dysfunction.
Let me know what works for you.
Citations
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There could be lots going on, so i'm not trying to be comprehensive and exhaustive - not sure that's possible. The goal of this post is to look at pain generally, muscle cramps in particular and what's hypothesised about causes, introduce a newer model not seen in web discussions of cramp, and propose a refinement for that model. Finally, some practical suggestions of getting out of that cramp while heading to barefoot running freedom.
Pain is a signal for Change
I've used the analogy of a car oil gauge regularly reading low. One solution is to top up the oil in the engine so that the gauge reads the right level. That level will only last short term and needs to be repeated regularly - and in the interim, what related problems might be developing from such regular loses?
Another solution is to do a diagnostic to find out what else might be going on - like a leak in the engine block where actually a bolt may simply need to be tightened (or an entire gasket in the block replaced - can you tell i'm having flashbacks of stripping the head of an engine in the middle of the bush on an old carola. never mind; i digress). The point is, getting away from site = source often leads to better results.
In the car analogy, finding a more fundamental issue, performing a wee tweak and testing if that tweak will work means that the oil level stays where it's supposed to be for as long as it's supposed to be there. Both approaches are a kind of solution; the benefits on the system and the wallet are better in the latter case.
What's a Cramp in the Calves Anyway?
So taking the above pain thesis into account, what does this mean for the calves rock effect?
What's a Cramp? A cramp is an involuntary and intense contraction of a muscle. What causes a cramp is a subject of much discussion, and poorly understood. A quick check on the web doesn't get at too much about why this contraction occurs.
WHy a cramp? The usual checks: electrolytes, hydration, low carbs, tight muscles to begin with are offered up not as reasons, but of things somehow thought to be related to cramping. Here's an examplary summary of that kind. In this model, the thesis seems to go, the muscles don't have the chemical materials needed to fire in that working limb properly so they effectively rigor mortis up. This rationale for cramp has been more or less tossed out as demonstrated here in 04, and as summarised in this recent BMJ review article. First, on dehydration:
A careful review of the literature did not identify a single published scientific study showing that athletes with acute EAMC are more dehydrated that control athletes (athletes of the same gender, competing in the same race with similar race finishing times). In contrast, there is evidence from four prospective cohort studies showing that dehydration is not associated with EAMC.And on electrolytes (and dehydration):
In summary, dehydration and electrolyte depletion are often considered together (and recently together with muscle fatigue) as the ‘‘triad’’ causing EAMC. The key components of this hypothesis (fig 1) are that electrolyte (mainly sodium) depletion through excessive sweat sodium loss together with dehydration causes EAMC. However, results from prospective cohort studies consistently show that athletes suffering from acute EAMC are not dehydrated, neither do they have disturbances in serum osmolality or serum electrolyte (notably sodium) concentrations. Furthermore, sweat sodium concentrations measured during exercise in 23 reported cases with a past history of EAMC are not higher than those reported in many other studies. Both electrolyte depletion and dehydration are systemic abnormalities, and therefore would result in systemic symptoms, as has been observed in other clinical conditions. However, in EAMC, the symptoms classically are local and are confined to the working muscle groups. Thus, the available evidence to date does not support the hypotheses that electrolyte depletion or dehydration cause EAMC — therefore an alternate hypothesis for the aetiology of EAMC has to be considered.And here's another typical "it's because you didn't stretch right" response - but you'll note the article doesn't raelly say *why* stretching prior to running does or does not do anything for cramp reduction. Indeed, when it comes to running and stretching, the current scene seems to suggest that a stretching program - not necessarily something done prior to running, but just putting this into one's routine - helps running mechanics. That's different. And has nothing to do with a pre-run routine to reduce cramps; as we'll see, stretching is used to respond to a cramp; not prep for one.
Here's another view of cramps by Luke Hoffman that could be written for VFF runners:
According to current theory in the sports science literature (as of 1997), skeletal muscle cramps during exercise probably happen when muscles that are shortened (for example, a calf muscle when your toe is pointed) are repeatedly stimulated. This can happen if your foot is extended, toe pointed, and you keep extending it further. You can actively do this by, for example, running on your toes or doing lots of toe-raises without going down to extend the muscle. What appears to happen is that the muscle gets fatigued, and it doesn't relax well. There is a reflex arc -- made up of the muscle, the nerves carrying signals to the central nervous system (CNS) and the nerves carrying signals from the CNS back to the muscle -- that keeps carrying contraction signals from and to the muscle. This appears to lead to a sustained contraction in the muscle, also known as a cramp.
Stretching (in this case, grabbing your toe and stretching the calf) is about the only thing that breaks this reflex arc signal and stops the cramp when it comes to exercise-induced cases. But the muscle is still fatigued, and the cramp process is easy to re-trigger until the muscle rests for a while. The fatigue-cramp process seems to happen most often in muscles that cross two joints, such as the calf muscle (which crosses the knee and ankle), since the muscle is easy to shorten and continue contracting.
The above describes what might be called "voluntary contraction" - not quite the same as involuntary. If we take the above council about voluntary cramps to bear, however, what should be the case is once a cramp starts, we should stretch it out, and wait for the fatigue to pass from that contraction, and recover, and really stop doing what we were doing - running on the forefoot. Consequently, Pose & VFF runners who run on the forefoot should be cramping all the time. And if we believe work in barefoot running, this is rather how we're designed to run. So, hmm, maybe not.
None of these explanations therefore is complete it seems, to explain cramping we see in the calves that comes on unexpectedly, as lots of well fed, well hydrtated, well electolyted people who stretch still get cramps, and these weird cramps in VFF's in particular.
So why does this cramp only happen *some* of the time - especially if all the typical niceities of cramp avoidance are observed? For me, for instance, it happened first when i started practicing actually bringing the heel of the foot down more (extending the calf) when running, rather than staying up on the forefoot. So, maybe it's not (entirely) about the calves?
Altered Neuromuscular Control. In the research one of the explanations around cramp is: maybe the muscle is just not strong enough to do what is being asked of it, for the duration it's being asked to operate at this level - hence fatiguing - and it's that fatigue that is setting up EAMC: exercise-associated muscle cramping. This hypothesis, also known as "altered neuromuscular control" was first proposed in 1996, so that's how new this stuff is. A key part of this model is that the neuromuscular control issue is located in the SPINE, not at the site of the issue - the site is paying for what's going on at the source.
There is a growing body of evidence to suggest that the mechanism for muscle cramping has a neuromuscular basis. Firstly, as has been discussed, voluntary muscle contraction or stimulation of the motor nerve can reliably cause muscle cramping. Secondly, there is evidence from experimental work in human subjects that stimulation of the 1a afferents through electrical stimulation or using the tendon tap (activating the 1a afferents) can induce cramping. Thirdly, it has repeatedly been shown that the most effective treatment for cramping induced in this manner is muscle stretching.
[WHY stretching?] An increase in tension in the Golgi tendon organ during stretching, which will result in increased afferent reflex inhibitory input to the a-motor neuron, is a plausible mechanism to explain why stretching is an effective treatment of cramping. [see Bertolasi and Co., '93]
[...]
There are other possible mechanisms that could alter neuromuscular control at the spinal cord level, and therefore may contribute to the development of EAMC. The first of these is the possibility that muscle injury or muscle damage, resulting from fatiguing exercise, could cause a reflex ‘‘spasm’’, and thereby result in a sustained involuntary contraction. The second possibility is that increased or decreased signals from other peripheral receptors (such as chemically sensitive intramuscular afferents, pressure receptors or pain receptors) could elicit a response from the central nervous system that can alter neuromuscular control of the muscles. These other mechanisms have not been investigated in athletes with EAMC, but would be important to explore in the future.
Wildly Hypothesising? What's going on when this particular response occurs well before one would think a muscle used to running for miles and miles starts to go all crampy?
In
In Z-Health, Eric Cobb translates this fear response into the nervous system's job to perceive threat or no threat: if there's a perception of threat, the system starts to shut down (example in arthrokinetic reflex). What might be the threat ocuring in VFF ocaisional calve cramping? The system may be literally putting on the breaks to what it perceives as a threatening to it's well being practice.
It's easy to see that if the nervous system perceives that the task - going at a particular speed in a particular way - is causing part of the system to be over-taxed, it's going to respond to that as a threat or non-optimal situation, and if it takes pain to get change, well, whatever it takes.
Personal Experience. Taking a Z-Health approach to this experience, i think i've learned to become more alert to any pain signal my bod sends up in an athletic effort. So in this case, if and when these cramps begin, they usually start with a very mild "uh oh" twinge of "about to turn to rock if you don't respond."

There are two simple things that z-health suggests for rehabbing a movement with the cue of "never move into pain:"
- reduce the range of motion
- reduce the load
Guided by the Nose: run to pace inhalation. Another technique i've been using and coaching to help head off cramps and adapt to barefooting generally is to explore gaiting running speed with ability to stay breathing in through one's nose. If running at a clip where i have to mouth breath, i slow it down (i find if i hit that level, it's pretty hard to get it back to nose inhaling). This approach is just one way at least some of the time to practice running reps quality rather than overdriving the other parts of the system.
Deeper Tune Up: Starting from the Source
So we've seen one theory in the research is around muscular fatigue inducing EAMC; getting stronger in those areas where muscles cramped seemed to help. In one study. That's great. Another possibility - that can lead to faster fatigue - is if there's some kind of issue in one's movement that is causing perhaps other muscles to compensate for other weaknesses, and causing fatigue/pain/signaling in the calves faster that should happen for that group. So while a solution may be to do extra strength work, maybe a faster solution may actually be to look at one's movement as a whole.
In other words, the calves may be plenty strong IF everything else is firing up appropriately, but they may be being asked to super compenate for other stuff, that if those other movement issues were addressed, wouldn't cause the problem.
There's value therefore in (a) having a movement assessment and (b) practicing dynamic joint mobility and sensory-motor work to ensure great movement, and ability to maintain great, clean movement.
Summary: Avoiding Running Cramps in VFF's
Based on the latest research, EAMC cramps are about temporary loss of clear neuromuscular control. The best model so far to explain this effect is fatigue. A known way to work out a cramp is to lengthen the muscle. There may however be other approaches that just haven't been researched that also seem to work. The hypothesis here is that these approaches are dealing with neurological signaling, too, taking advantage of the sensory-motor system.
Some pragmatic responses therefore if cramp occurs are:
During a Run: Assuming one is not dehydrated, de-electrolyted, or have squirrels biting their calves while running,
- As soon as a cramp (pain) starts, change something - gait, speed, whatever; if that doesn't work, stop what you're doing.
- consider rather than (just) stretching, doing mobility/sensory-motor work.
And before That
Consider a movement assessment to check for what Gray Cook calls "weak links" so as not to build strength on top of dysfunction.
Let me know what works for you.
Citations
Schwellnus, M. (2008). Cause of Exercise Associated Muscle Cramps (EAMC) -- altered neuromuscular control, dehydration or electrolyte depletion? British Journal of Sports Medicine, 43 (6), 401-408 DOI: 10.1136/bjsm.2008.050401
OHMAN, A. (2005). The role of the amygdala in human fear: Automatic detection of threat Psychoneuroendocrinology, 30 (10), 953-958 DOI: 10.1016/j.psyneuen.2005.03.019
Bertolasi L, De Grandis D, Bongiovanni LG, Zanette GP, & Gasperini M (1993). The influence of muscular lengthening on cramps. Annals of neurology, 33 (2), 176-80 PMID: 8434879
Wagner, T. (2009). Strengthening and Neuromuscular Reeducation of the Gluteus Maximus in a Triathlete With Exercise-Associated Cramping of the Hamstrings Journal of Orthopaedic and Sports Physical Therapy DOI: 10.2519/jospt.2010.3110
Caplan N, Rogers R, Parr MK, & Hayes PR (2009). The effect of proprioceptive neuromuscular facilitation and static stretch training on running mechanics. Journal of strength and conditioning research / National Strength & Conditioning Association, 23 (4), 1175-80 PMID: 19528850
Schwellnus, M. (2004). Serum electrolyte concentrations and hydration status are not associated with exercise associated muscle cramping (EAMC) in distance runners British Journal of Sports Medicine, 38 (4), 488-492 DOI: 10.1136/bjsm.2003.007021
Schwellnus MP (2007). Muscle cramping in the marathon : aetiology and risk factors. Sports medicine (Auckland, N.Z.), 37 (4-5), 364-7 PMID: 17465609Related Sources
Schwellnus, M. (2008). Cause of Exercise Associated Muscle Cramps (EAMC) -- altered neuromuscular control, dehydration or electrolyte depletion? British Journal of Sports Medicine, 43 (6), 401-408 DOI: 10.1136/bjsm.2008.050401
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Tuesday, September 8, 2009
What is Z-Health b2d Article index: what is it, reviews and more
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The following index lists a suite of articles i've written about aspects of Z-Health.
I'd like to preface these articles with the following overview i gave in an interview with Chris Highcock from Conditioning Research Nov 09.
Chris asked "I have read a lot about Z Health over the last few years and it is often presented almost as a miracle panacea. I bought the basic Neural Warm Up Level 1 DVD and it just seemed to be a bunch of mobility drills. Must admit to a bit of cynicism. What am I missing?"
Here's the reply:
Some folks have told me, ok, enough where to i start? I don't need to read more. So
If you'd like to dive right in, don't want to read further, just want to get going, here are a few recommendations for getting into Z-health practice.
b2d R-phase DVD Overview. Includes coverage of what's in the R-Phase and Neural Warm Up 1 dvd's along with concepts in Z in genera.
I-Phase. The follow on package is i-phase/neural warm up 2 (level 2 package). This takes the drills learned in R-phase neutral stance (standing tall) and starts putting them into more challenging, loaded, and real life postures that can also be readily adapted for sport or life specific work. There are more vision drills included as well. Vision training is talked about in more detail in the S-phase overview.
b2d What's I-Phase and Why I-Phase?. I-Phase is the second stage of the Z-Health template. It's where you can get all sports specific with the application of the drills, and where it goes from postures in neutral stance to crazy pattern stuff.
When to move from R-phase to I-Phase: b2d guidance. It may be sooner than you think, and that's great!
Going Full Athlete
S-Phase: The Complete(r) Athlete: And for folks who are keen to take their vision, speed, coordination performance for life and for athletics further, there's S-Phase
S-Phase is the learn how to get super fast - which involves not only the body but the visual and balance systems as well. This is an awesome and inspiring DVD where concepts like bone rhythmn are letter ball catching are taught. As well as how to get up and GO from being on your back really fast.
Here's the b2d S-Phase, Complete Athlete Vol 1 DVD review.
Atheltes are strongly advised to have R/I under their belts before moving to the S-Phase drills.
Getting The Full Monty: R, I, S together.
If all this sounds like a profoundly good idea, z of course puts together all the above disks into a box set of dvd's and manuals.
Putting Z Together, one on one
R, I, S Workshop. If you already think z-health sounds intriguing, and you'd like to check out with some hands on
guidance, beyond the DVD's, and learn more about the neurological approaches, applications and self-assessments, then the Elite Performance Workshop is a great way to go. This is a 3 day workshop that goes through the core principles of R,I and S, with practical exploration of the drills associated in each along with how to tune proprioceptive, visual and vestibular performance (overview of workshop here)
The workshop is also a great way to see if you're thinking about certifying as a z-health coach, to get a flavour for the program. If you do decide you want to certify, the cool thing is, your registration for the workshop can be applied directly to those courses, so you're getting a kind of double value from the workshop to the cert.
Course Support -Prep More; Save More - The Essentials of Elite Performance DVD mini course
This 2010 dvd is perhaps the best way to get an overview of Z-Health. It provides all the drills and assessments from the Elite Performance Workshop, so there's immediate take-away value for practical use either personally or for working with clients AND the cost of the DVD in its entirety will be applied to the workshop if you register for a workshop within 30 days of purchasing the DVD.
The workshop provides hands on and discussion oportunities to check and tune your own performance, but the DVD gives you an ongoing reference to map after the course to the material covered, and before the course to prep up any questions, so you can get even more from the onsite experience. Of course you don't have to do the workshop, but my guess is you'll want to before you're finished the first disk. And like all z-health's material, it's 100% satisfaction guarenteed.
Certifications. Then there's the biggie: certification itself. If like me, you're seeing this, going "i just want to get certified," you get the level 1 package included in your registration. It's a 6-day course (can be done over 2 weekends)
b2d Review of R-Phase certification
Where science meets application for efficient, immeidately applicable performance enhancement.
Here's also a wee report about successes around pain with just the first z-health cert, R-phase: Moving Clients out of Pain: Z-Health R-Phase in Practice
Trainers/Assessments And finally, if you'd like to connect with a z-health trainer to tune your personal performance here's a list. Now like anyone in anything, all trainers are human beings: the same rules apply for finding a great z trainer as they do for finding anyone you'd choose to work with you.
REQUEST: let 'em know mc at b2d recommended you
General Movement Related Considerations:
The Z-Health 9S model of the Athlete
Related Posts
I'd like to preface these articles with the following overview i gave in an interview with Chris Highcock from Conditioning Research Nov 09.

Here's the reply:
I can kinda see how one might get that impression of “incredible results” because of where Z-health is focused. The framing of z-health is to get as fundamental as we can with what happens inside of us. The nervous system/brain connection is at the leading edge of this understanding, so z-health asks how does the nervous system work? Knowing that how can we work with that?
In brief the nervous system works fundamentally as a governor of our survival, detecting threat or no threat, threat or no threat. As soon as there’s a detection of threat, the body starts a response process to enhance survival. That may be releasing stressor hormones for fight or flight, or starting up an inflammation process for healing, or simply shutting down full power to a muscle or setting up a pain cry so bad we have to go all foetal. The goal of z-health is therefore threat modulation.
Now as to those mobility drills, it turns out that there are some great ways to talk with the nervous system via movement. We’re designed to move. We have joints in our bodies for a reason. So by moving the joints actively we are sending loads of all clear/no threat signals to the nervous system. As we move joints, we are also sending a very rich map of where we are in space to give the body increased options about how it can respond to a threat: the more joints perceived as richly mobile, the more responses to avoid an incident. The internet is sort of like this process: if an email message can’t get through via one route because it’s busy, another one is used. More options are better.
To make this practical, let me take evil shoes as an example [i'll add in a link here to where i've written about this in more detail -mc] . A quarter of the joints in our bodies are in our feet. When we wear shoes their range of motion is reduced tremendously because many shoes have very thick and very rigid soles: they may only slightly bend at the ball of the foot, and not really twist easily. As a consequence, messages that would be coming to the brain about where our foot is in space at any given time goes down. There’s just not as many points of information firing back to the brain to say where every little joint is moving. Consequently there is less information the brain can use to keep us out of trouble if it senses we’re stumbling. If the only joints its getting rich signals from are the ankles as opposed to the tarsals, metatarsals, falanges, what’s it going to do? There was a study out this summer that said no kind of sneaker mitigated the incidence of foot injuries in the context of the army’s training [link about study added -mc].
No kidding: all these high tech sneakers do the same things: cut off our optimal signalling.
The foot is one common example of what happens at every joint in our body. One of the challenges for many people is moving the bones in their upper spine back and forth or side to side. This means the back that should move in segments acts like a unit that’s not functioning optimally, so some other body part that is takes up the slack. Eventually pain will result. RSI, carpal tunnel syndrome, tennis elbow are all examples more times than not of movement related compensations, joints that aren’t moving through their range of motion.
A lot of pain is movement based. Fix the movement, open up the signalling around the joints, give the body more of its options, and a way to map out where we are and what we’re doing in space, well being is enhanced.
So z-health can seem pretty miraculous in the context of someone who’s had say a lot of manual therapy for a back problem, or has had what feels like chronically tight hip flexors, and they do a simple drill with a z-health person and suddenly they feel ok; they can move again; pain’s gone. Our nervous system – some of the fibres – is sending signals at 300mph, and responds immediately and exactly to what we’re doing. So yes change can be that fast. When we do it for ourselves, we’re triggering off thousands more nervous systems signals than when someone manipulates us, so we also really amp up our body’s ability to learn and hold that new pattern [example video added below -mc].
Some of it seems like magic or voodoo – with prescriptions on which way to look etc. Is there a simple principle behind it all that you could summarise?
Now as for that r-phase dvd seeming like a lot of mobility drills, what you find when getting together with a coach (even though this is all in the manual, sometimes it helps to be shown), is the precision of the movements is important. It’s sort of one of the things that’s distinct about z-health. Hitting the target is a big part of getting the benefit of this signalling. Moving the joints at different speeds comes into this process, too. And finally, R-phase is the movement fundamentals. It’s designed for folks to go into i-phase as soon as possible. I-phase gets out of r-phases neutral stance and into a more template approached to movement where we practice the drills in loaded positions, for example, in a lunge with both feet at 45 degrees, and the head titled – a la catching a ball while running. Again the focus is on precision of these core movements translated to more challenging, realistic planes of action. It’s why I call i-phase where we “train for the sprain” – prepping the bod for weird positions by practicing that mobility.
Threat modulation.Diving Into Z-Health: where to start with what kit?
Once you get that we’re wired for survival and that everything in us is geared to survival – to perceiving and responding to threat, then the voodoo goes out and the “obvious” science comes in.
The eye position stuff, by the way, is related to the nervous system again with respect to our visual systems. We talk about joint mobility and awareness of where we are in space. That’s proprioception. And it’s third in our way of perceiving the world. First is visual, second is vestibular, third is proprioceptive. So by finding out by assessment if someone may have an issue with looking in a particular direction, and working with that, problems that seem intractable just treated with movement can suddenly open up. Z-Health really tries to respect how we’re designed. As an engineer, that’s appealing.
Some folks have told me, ok, enough where to i start? I don't need to read more. So
If you'd like to dive right in, don't want to read further, just want to get going, here are a few recommendations for getting into Z-health practice.
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R-Phase package |
R-Phase. The best best way to start to explore z-health is the r-phase/neural warm up 1 kit (level 1 package). The r-phase suite is the fundamental drills for the whole body. The neural warm up is a sub set of these drills that can be done every day, quickly. They also include vision work.
b2d R-phase DVD Overview. Includes coverage of what's in the R-Phase and Neural Warm Up 1 dvd's along with concepts in Z in genera.
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I-Phase Package |
b2d What's I-Phase and Why I-Phase?. I-Phase is the second stage of the Z-Health template. It's where you can get all sports specific with the application of the drills, and where it goes from postures in neutral stance to crazy pattern stuff.
When to move from R-phase to I-Phase: b2d guidance. It may be sooner than you think, and that's great!
Going Full Athlete
S-Phase: The Complete(r) Athlete: And for folks who are keen to take their vision, speed, coordination performance for life and for athletics further, there's S-Phase
S-Phase is the learn how to get super fast - which involves not only the body but the visual and balance systems as well. This is an awesome and inspiring DVD where concepts like bone rhythmn are letter ball catching are taught. As well as how to get up and GO from being on your back really fast.
Here's the b2d S-Phase, Complete Athlete Vol 1 DVD review.
Atheltes are strongly advised to have R/I under their belts before moving to the S-Phase drills.
Getting The Full Monty: R, I, S together.
If all this sounds like a profoundly good idea, z of course puts together all the above disks into a box set of dvd's and manuals.
Putting Z Together, one on one
R, I, S Workshop. If you already think z-health sounds intriguing, and you'd like to check out with some hands on

The workshop is also a great way to see if you're thinking about certifying as a z-health coach, to get a flavour for the program. If you do decide you want to certify, the cool thing is, your registration for the workshop can be applied directly to those courses, so you're getting a kind of double value from the workshop to the cert.
Course Support -Prep More; Save More - The Essentials of Elite Performance DVD mini course

The workshop provides hands on and discussion oportunities to check and tune your own performance, but the DVD gives you an ongoing reference to map after the course to the material covered, and before the course to prep up any questions, so you can get even more from the onsite experience. Of course you don't have to do the workshop, but my guess is you'll want to before you're finished the first disk. And like all z-health's material, it's 100% satisfaction guarenteed.
Certifications. Then there's the biggie: certification itself. If like me, you're seeing this, going "i just want to get certified," you get the level 1 package included in your registration. It's a 6-day course (can be done over 2 weekends)
b2d Review of R-Phase certification
Where science meets application for efficient, immeidately applicable performance enhancement.
Here's also a wee report about successes around pain with just the first z-health cert, R-phase: Moving Clients out of Pain: Z-Health R-Phase in Practice
Trainers/Assessments And finally, if you'd like to connect with a z-health trainer to tune your personal performance here's a list. Now like anyone in anything, all trainers are human beings: the same rules apply for finding a great z trainer as they do for finding anyone you'd choose to work with you.
REQUEST: let 'em know mc at b2d recommended you
if any of this information at begin2dig contributes to your deciding to do a z-health workshop or cert, or even get a disk or two, please let the z-health office know when you sign up or purchase stuff. Here's why: z-health has a great continuing education program: a trainer can re-attend any cert they've taken for free, forever.
Ongoing Ed: if anyone takes a course and credits a current trainer with that encouratement/recommendation, that trainer gets credits - virtual dollars - towards a future z-health course. That's gold. So thank you for your kind consideration. I think you can tell i think this stuff is pretty wicked. Let's do more together.And now, really, back to the articles.
General Movement Related Considerations:
- Move or Die: Movement as Optimal Path to Health - and by the way what is Dynamic Joint Mobility Work.
- Why not Train Through Pain?
- Chronic Back Pain - what it may be and solutions
- What's a Mobility/Movement Assessment and Why Have One?
- Relationship of Z to other Movement Practice - like T'ai Chi, etc
- Sensory Motor connection: training on the other side of the Weight Room for training
- Should i do this next set? Fatigue testing
- One less rep: it's ok NOT to finish a set.
- Hormones: middle managers of state change in the body.
- Some differences between Active and Passive/Manual Care for Performance
- Turkish Get Up as Partial Movement Screen?
- Turkish Get UP: Role of the High Hip Bridge - gray cook
- Arthrokinetic reflex (demo): joint action affects muscle performance

- " How Many Reps of this Mobility Drill Should I Do?" A key concept in Z-Health is the SAID principle: specific adaptation to imposed demand, and its relationship to learning stuff to become optimally, athletically efficient.
- Going Lighter to Go Heavier: Threat Modulation in Lifting (skills first then load )
- the four elements of movement efficiency - in the path to the perfect rep and the kb front squat revisisted.
- over at nopain2.geekfit: free your feet!
- guest article at birtdayshoes.com Vibram FiveFingers and Z-Health: Move and Feel Even Better (than VFF's alone)
- Range of Motion example - youth and GS
- Threatened into Hypertrophy: Get Huge or Die
- Eye Health: How Fast can you switch focus?
- Eye Position and Strength - how one supports the other
- Eye position to support rowing stroke.
- How get strong if PART of a muscle isn't On?
R-phase & DVD Overview. Includes coverage of what's in the R-Phase and Neural Warm Up 1 dvd's along with concepts in Z in general
- An R,I, and S Z-Health Workshop Preview. Occasionally Z-Health puts on a three day workshop that includes R,I,S Phases. Wow. So what's in 'em and why would you want them, and who would want them?
- What's I-Phase and Why I-Phase?. I-Phase is the second stage of the Z-Health template. It's where you can get all sports specific with the application of the drills, and where it goes from postures in neutral stance to crazy pattern stuff.
- When Switch Up from R-Phase to I-Phase (and how)?
- S-Phase, Complete Athlete Vol 1 DVD review
S-Phase is the learn how to get super fast - which involves not only the body but the visual and balance systems as well. This is an awesome and inspiring DVD where concepts like bone rhythmn are letter ball catching are taught. As well as how to get up and GO from being on your back really fast.
- What the Heck is Sustenance - an overview of the 9S:Sustenance certification
The Z-Health approach to nutrition, well being and why no single factor solution will solve the obesity epidemic
- Essentials of Elite Performance Workshop: Hands on Z-Health in 3day Intensive workshop. (Applications of this workshop to sports performance)
The Z-Health 9S model of the Athlete
Aside: if you'd like to train with me (mc)
or do a workshop with me i'd be delighted
or do a workshop with me i'd be delighted
INDIVIDUAL: Please see the "coaching with dr. m.c." page
WORKSHOPS: I also run workshops on kettlebells, z-health, and/or general performance tuning (you will get faster - even if like me, you've thought your were slow).
Here's a nice discussion by Jez Davis (unsolicited even) on the highlights of one such workshop with Rannoch Donald of Simple Strength. And another by Chris Highcock of Conditioning Research.
If you'd like to host such a workshop, please email. Let's make it happen.
Related Posts
- foot mobility rules: articles on the vibram five fingers experience
- applying z-health to strength practice: the perfect rep quest series.
Labels:
movement assessment,
neurology,
z-health
Tuesday, September 1, 2009
P90X Critique Part 2 0f 3 - WIll you really "get ripped"?
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Does P90x work - when measured against its own claimes: does P90x get one "ripped" in 90 days? This article reviews the exercise and diet plan of P90X to get at that question - but really it's about providing a way to assess any "body transformation" or "12 week" program to see (a) if what's on the label is what's in the tin and (b) if what's in the tin matches what your goals for a program. You'll find criteria about two key components of such programs, diet, and nutrition, and how to assess the degree to which each of these components is likely to deliver the claims a program promises to deliver, and for whom.
The following therefore is more or less a worked example of applying/deriving this assessment via a critique of P90x - a program billed as an "extreme" workout (+ diet) specifically designed for practitioners to 'get ripped.' It's pretty detailed, so long. It looks at the exercise program first and then the nutrition program in the context of its promised results.
Context
In Part 1 of this reflection/critique of P90x we looked at the core P90x concept of "muscle confusion". We also poked at the rationale behind a few of the "bring it" program's routines within this "muscle confusion" context. The conclusion was, based on what's known about physiological adaptations that occur in a 12 week program by novices/deconditioned athletes - P90X's target market - muscle confusion is basically a marketing gimmick.
In this second of this three part series, i'd like to look at the concept of "getting ripped" that is a key part of the P90X delivery promise.

In Part 3 we'll look at alternatives to the two core parts of P90X, but in the right order (a) diet (from places one doesn't usually think about diet - it's not just about the food) and (b) workout practices (they're both practices)
As i said in part 1 and will say so again here, there's nothing wrong with anyone wanting to do - or actually doing - P90X or similar- the routines are "not considered harmful," to draw on a computer science trope (at least not too harmful - we'll see more in part 3b).
What we might ask about P90X is does it deliver what's on the tin? Will anyone who passes the P90X fit test and is therefore deemed "ready" to do P90X "get ripped"? - and in P90X's definition, that pretty much means, at a minimum, have a six pack.
P90X suggests that if you follow it's program, you will be "transformed" from "regular to ripped" in 90 days. That's its formula: do the workouts; follow the diet. So we're going to look at each part of that formula against some objective criteria for ripped-ness.
Basic necessities of Getting Ripped by which to assess P90X capacity to deliver:
There are fortunately only two things involved in getting ripped, level of importance listed here:
RECIPE/FORMULA ASIDE for 6 Pack
If you want to skip the rest of the article here's the recipe for 6 pack abs:
As to why this is the recipe, well that's in the rest of this article.
Results from this article:
First, there are tons of 12 week programs out there, all promising grand things. Where do we get our information about what works in these programs? Usually from the programs themselves. But we saw in the first part of this series that P90X's key concept "muscle confusion" is more marketing than fact, especially in the context of deconditioned or novice trainees. So are the before and after shots for P90X's amazing transformations that seem to be portrayed also a gimmick? How can we make this assessment.
Second, i'm guessing that folks who choose to do P90X or other 12 week transformations may know about as much about how fat loss and hypertrophy really work as i did when i started the program: less than i thought i did, and so pretty accepting of the way P90X presents each of these: exercise first, diet second, bf% is just a measure of progress.
The reality, as we'll see, is very much different: diet has to be first, exercise is second and bf% is, in the context of "getting ripped" a very specific target, and one that can be reasonably calculated to determine the length and intensity of a program to deliver desired results.
So to begin, let's begin with where P90X puts its energy first: exercise.
o Muscle Building Very Basic Basics.
P90X doesn't come out and say that it's a muscle building program - and that's good, cuz it's not (more on that in a moment) - but most of us think that the term "getting ripped" implies building muscle.
Likewise, those men's before and after pictures in P90X (like the ones fo JonC, left) seem to imply that muscle mass will accompany the program. Hmm.
There's a lot we don't know about how muscle growth works, but there's a couple of things we do know: to build muscle we need two things: caloric surplus and appropriate muscular stimulation to force an adaptation. In this case, that adaptation means laying down new muscle fiber and so getting some muscle growth. Muscle growth also pretty much requires eating more rather than less: we want more body mass - in these case muscle tissue - the resources for that tissue have to come from somewhere. For us, that's the right nutrients - i.e. food.
Muscle in Two Parts:
That said, here's a factoid from Christian Thibaudeau's excellent and recommended discussion of mass building: with someone (read male in this case) totally committed to muscle building, getting diet and workouts just so, the range of muscle building to expect is .25 to .5lbs of *dry* muscle per week. In the real world that non-fat weight would show up with an additional 40% from additional water/gylcogen. So ten pounds of muscle shows up more like 14lbs on the scale. But whether 10 or 14 pounds of fat free mass let's call it, at .5+ pounds a week, 2 pounds a month, that also means five to ten perfect months to get that 14 pounds.
Here's another factoid from that article - a person sitting at say 120lbs of lean mass (weight minus fat) would need to eat 2440 calories a day to start growing mass with those optimized workouts.
Even before we get to the type of workouts, a basic question we might ask is, is the diet in the program one of caloric surplus or caloric deficit? So whether you gain muscle on P90X or not will largely depend on how much of a caloric deficit - or not - you're in during the program. That discussion is below.
Generally, P90X aims to have a person in caloric deficit - without which fat loss will not occur. Period. So here's a potential contradiction, not unique to P90X, but certainly rather brushed under the carpet in this case: if muscle mass building requires caloric surplus, but the program keeps someone in caloric deficit throughout, how can muscle be built? This isn't a Zen Koan. The inverse may help: if one is eating enough for muscle building, what kind of caloric deficit is going on and what kind of fat loss is occurring?
Another question: if P90X runs a person into caloric deficit, how explain those before and after pictures that *seem* to show more muscle mass at the end of 90 days?We'll come back to these questions. First, let's look at how we might understand what kinds of muscular adaptations P90X promotes.
Kind of Strength Foregrounds Kind of Muscle
Another part of the muscle building adaptation is type of load, rest, volume and recovery. As we said above, to get new muscle fibers to be laid down, there has to be a demand for that kind of growth. As we saw in part 1, also, the type of adaptation in the first 8 - 12 weeks of a resistance program for a neophyte is mainly neurological. That means muscle that already exists is learning how to support the loads. Only once the challenge goes beyond that initial adaptation, effectively, does new muscle get laid down IF the challenge requires that adaptation. Does P90X require that hypertrophy adaptation?
o P90X: endurance training disguised with weights.
In the P90X program, 3 out of the 6 days a week are "resistance" oriented workouts (the other three are "cardio" oriented). But what kind of resistance training are we talking about? Turns out they're something known as circuits.
Circuits in general are usually about putting several exercises together, doing one set of each exercise with little rest between moves. The weights used in each of these sets has to be sufficiently light to be able to move between exercises with limited rest.
Indeed, in P90X resistance workouts, the rep ranges are anywhere from 7 to 12. The only instruction on how to pick a weight is so that one will "feel the burn" in the last couple of reps.
Based on the above template, we get the following in the resistance routines: 20+ minute circuits, 1 set per move, mid to high reps, critically: no rest between sets. At most, there is 60 seconds active recovery between circuits 2-3 circuits.
We've said these workouts are circuits but when rest between sets is taken out of the equation for this kind of period, we're looking at endurance or stamina training rather than muscular strength.
Let's look at how "strong" is used as a term in P90X. "Stronger" throughout the P90X program is largely defined by being able to endure, keep up, do as many reps of a move as Horton and Co perform with as little rest as possible over the course of the hour. That's endurance strength. The adaptations developed in the muscles are mainly aerobic in nature, which means that the muscles get,
Foundational. Basic. Upping oxidative capacity. Not building mass, but improving the muscle's capacity to use oxygen which means greater work capacity for longer. That sounds great for health but doesn't sound like a "getting ripped" program, though, does it? And saying that, are circuits the best way to build this capacity?
Here's an assessment of the kinds of circuits P90X uses for training:
The above Goal 3 Sounds like P90X's "resistnace" workouts (and all the other P90X workouts, too, for that matter). That latter point then is as close as P90X comes to having an effect, and it's not strength per se or muscle building. It's endurance: keep the movement going to keep the heart rate up for periods longer than 4 minutes; improve oxidative capacity (ability to burn fat).
Recap on P90X Circuits
SO what have we learned? Circuits are, at best, novice routines, or for sick or rehabbing, or obese. THis doesn't sound like the deconditioned x-jock population P90X is supposedly targeting. So, P90X, as point 3 above, has tuned the workouts for what? Fat burning. Not muscle building.
Our question at this point might be, are these kinds of circuits the best way to burn fat for a deconditioned jock AND add "lean muscle" that the diet guide says will make up for not seeing much of a change on the scale?
Consider this: in a 24 week program study designed specifically to look at the effects of single set style circuit training vs periodized multi-set program, the lean mass changes for women were 2% lean mass gain over that 6 month period vs 8% gain with the alternative protocol. Likewise percentage body fat went down by 10% in 6 months (eg, someone at 24% went to 21.6%) vs 25% with the alternative protocol (that 24% person wend to 18%).
So, these workouts are *mainly* fat burners/endurance builders, and don't seem to be necessarily the best approach to optimize fat burning or lean mass building. In part 3 we'll look at some of these alternatives in more detail.
Aside: P90X+ Let me cue up here that the P90X+ program is very similar in kind to P90X: 5 more P90X style workouts, but with fewer people on the set. These workouts are to mix into P90X. So one effectively re-does P90X, swapping out some P90X routines for the new ones. So, once more into the breach: more circuits, more little rest between moves. So, effectively, more of the P90X endurance same.
P90X - resisting muscle growth?
We now have a sense of what it takes to build muscle: caloric surplus - we need more to build more; and we need specific types of load/recovery/volume for muscles to grow. In looking at P90X, we see that the type of strength it's geared to building is endurance, not hypertrophy. The muscular adaptations are around fuel consumption - better oxidative/fat burning capacity - rather than mass building.
In sum, based on their design, P90X workouts - including the "resistance" workouts - are circuits, tuned for fat burning rather than muscle building.
Questions a person considering P90X might have at this point are therefore
Another question might be "but what about getting ripped? doesn't P90X deliver at least on that?"
At the top of this article we looked at getting ripped as body fat percentage first and muscle growth second. Ok, it's not delivering on muscle growth per se, so time to look at the diet side of P90X and we'll come back to its fat burning disguised as resistance training.
o The simple formula for a 6 pack? Body Fat Percentage
While i don't think he coined the term, colleague Rannoch Donald of Simple Strength may often be heard to say "there are no secrets." So here's a big non-secret to 6 pack abs: body fat percentage.
What P90X does not come out and say ever, anywhere, is that for a guy to begin to see his abs, he has to be at about 10% BF (in my experience of the guys i've worked with, it's actually below 10%); for gals, we have to be at about 15% or less. It's really that simple.
I wish i had known this at the time i was doing P90X. Rather than focusing on dropping 10 pounds, i might have looked into how feasible/healthy it would be to drop 10% body fat in 90 days, and how to optimize that. That *might* have helped me figure out right there if Kenpo-X and Plyo-X were the best ways to achieve that goal, or if maybe looking into diet-x might have been more profitable.
Indeed, what more and more research shows is that the only way to get to that ripped level BF% is calorie restriction. Calorie restriction (ie, diet) comes first; exercise is second. P90X of course doesn't say this fact either. It's selling "muscle confusion" first; nutrition way second.
o P90X Diet Math
This is not to say that PN doesn't get diet. PN has a diet book. And it's a corker.
What the Nutrition Plan for P90X says about the role of nutrition in getting ripped is as follows:
Please let me note again that one can gain lean mass while in caloric deficit. It's just not a lot. If one is gaining .25 lbs by eating for gain, and working out for muscular growth, how much fiber can be built when eating for loss and doing endurance not hypertrophy workouts? It's a real challenge.
So what's the P90X diet advice?
IT's amazing. Every 4 weeks, the macronutrient ratio changes - to match the demands of this incredible program:
Phase I: Fat Shredder - Days 1-28
Phase II: Energy Booster - Days 29-56
Phase III: Endurance Maximizer - Days 57-90
The above phases map to the following macronutrient ratios:
Macronutrient Goals in Each Phase
Phase I - Protein 50%, Carbs 30%, Fat 20%
Phase II - Protein 40%, Carbs 40%, Fat 20%
Phase III - Protein 20%, Carbs 60%, Fat 20%
How are these ratios achieved? By one of two ways: either follow the portion suggestions of how many portions of each type of macro nutrient to have, or by following the meal plans so even less to think about. Just eat exactly what it in the book, when it says to eat it.
Indeed, the portion approach is not unique to P90X but it is complex: Have X portions from the Protein group; Y portions from the Carbs and Z from fats.
This number of portions approach is to help avoid calorie counting. But the result also means that there are only three "sizes" of menu to fit everyone. Not exactly optimized for fat loss. Consider the following.
Calories Per Day - Three Sizes fits All
Here's how a person determines how many calories they're going to eat a day - what their Total X+Y+Z portions will equal.
Nutrition Level Chart
EA = 1800-2399 = Level I 1800 calories per day
EA = 2400-2999 = Level II 2400 calories per day
EA = 3000+ = Level III 3000 calories per day
Who is losing anything here and by how much? Hmm. This means someone who requires 2399 calories for maintenance in Level 1 will suddenly be on a 600 calorie a day deficit. In 6 days of workouts, that's 3600 calories - a little better than a fat pound. Someone who's closer to 1800 cals for maintenance will be losing far less in that week. Maybe nothing following this meal plan. And indeed, there's a real potential Achilles heal to this approach. IT's how one's Level is calculated: it assumes that ALL P90X workouts burn 600 calories.
Let's look quickly at how one figures out their energy level.
Determining Your Nutrition Level
1. Calculate your RMR
Your Body Weight x 10 = RMR
2. Calculate your Daily Activity Burn
RMR x 20% = DAB
3. Calculate your Energy Amount
RMR + DAB +600 CALS for p90x workouts = EA
Now, RMR stands for resting metabolic rate, and i have yet to find anywhere where it is simplified to body weight times 10, since it regularly takes into account height and other constants, etc, but let's set that aside and just go with this formula.
Here's an example:
1. a 140 lb gal of unknown height has an "RMR" of 1400
2. 20% is 280
3. 1400 + 280 + 600 = 2280 calories.
So that puts the person in EA of Level 1, 1800 calories a day. That would be, all things being equal, a 480 calorie a day deficit, which over 6 days, is 2880 calories, not quite a pound.
A gal at 130 is also in EA Level 1, and also told to eat 1800 calories, and that's only
1300+260+600= 2160, a difference of 360 cals a day, which in 6 days is 2160 - even further away from a pound a week.
A smaller gal at 120, 1200+240+600 = 2040 calories now at 1800, is eating only a 200 calorie a day deficit.
That's 1200 in a week, three weeks to lose a pound.
And that's IF those workouts are really 600kcals a piece. They are not. Or let's put it this way: it depends. Yoga X at about 80-90 mins is 200 calories; Kenpo-X, at 45 mins, is maybe 275 - 435. If you're totally "bringing it" maybe a bit more. So your heart rate is pushing it's aerobic envelop.
This math begins to explain the 6 pounds total i took off during my religious observation of P90X doubles - where i was keenly going for 600 cals a day from double workouts.
Special Case:
If someone is in the EA Level 3 of "3000+" of course potentially coming down from say 4250 a day to 3000, the possibility is that, all things being equal, one will be losing 2.5 ish pounds a week, 30 pounds over the 12 weeks.
o Body Fat X
P90X says that weight of course is "relatively meaningless" since a better measure is body fat percentage. Why? P90X doesn't explain in this guide why body fat percentage is more important than what's on the scale. We're simply told body fat % is the measure of progress.
So how does P90X use body fat %?
In the "relatively meaningless" way one uses weight? that it goes down? That's pretty much it. With one sweetener. It provides three body fat ranges for folks to feel really successful after completing the program:
But there's no correlation between Body Fat % and ripped. It does not come out and say that unless you hit that "Elite Athlete" bf% range, you will not be seeing that 6 pack. It's that simple.
BF% - supposedly important to P90X, but based on who and what army? A few questions a person may have at this point about a program claiming that bf% change is critical may be:
Other than just maybe/maybe not caloric restriction, the P90X diet guide seems to reflect Nutrition Confusion, perhaps to match the exercise program's muscle confusion, discussed in part 1. Over the course of 12 weeks, as said, the macronutrient ratio of the program changes 3 times. There are arguments in the data about why a person would want to start with higher protein and lower carbs and then by the end of the program invert this, but not really.
Here, the idea seems to be (it's not explicit), is that to kick starting the diet, bringing up protein and reducing carbs, will fire up fat loss. Hmm. But after that first month, because people will have been working so hard, they'll need to keep brining up the carb level to have the energy to survive it. There's a few notices about extending a given phase if one wishes, but the guidance is pretty much stick to the plan, stan.
Haven't seen the studies to support this kind of short term mix-it-up. Nutrition is complex. But a higher level fact we do have the resources to say is that fat loss happens with caloric deficit. Is that really achieved in the P90X diet plan?
And let's look at those figures again: the predicted weight loss on this program is 6-12 pounds. A half pound to a full pound a week. That's it. Unless you're in the 3000+ a day with a serious + a day. Honey, i can get you on a diet tomorrow with NO exercise involved that will guarantee to meet or double those numbers. No sweat. Literally. So what is someone doing on P90X if the goal is to get lean, to "get ripped"?
o Is What's on the Label What's in the Tin? Is this a Getting Ripped Diet?
P90X promises "getting ripped" as part of its objective.
If we can accept the premise that caloric deficit is required to reduce fat in order to see one's 6 pack, a key part of the "getting ripped" concept, we have to ask if P90X will really deliver this result?
Based on looking at the differences in caloric deficits to be achieved of just a few points of the Level I scale, for instance, it's pretty clear that the amount of caloric deficit to be achieved in following this program is likely to be highly variable, and likely at most about a pound a week for the people at the outside of the Level, and likely considerably less given that the caloric burn calculated for each workout is exaggerated.
Who will get Ripped on P90X?
Knowing that we need to get to a low body fat % to get the "get ripped" look, and knowing how much caloric deficit we need to burn FAT (as opposed to just lose weight), and knowing that there's such variation of caloric deficit with P90X and that at the most it's calculated to drop about a pound a week of fat for anyone who starts at eating 2999kcals a day, AT BEST, what does this tell us about the likelihood of getting ripped on P90X?
IF all the person needs to lose is 6-12 pounds to achieve the ripeed body fat percentage, then it's possible to get to the Ripped Place in the 90 days.
Otherwise, how can it happen?
Now, we know that *if* one gains lean mass and doesn't lose ANY body fat, their BF% goes down. True enough. But how much lean mass can one reasonably gain in 12 weeks with P90X such that it will effectively overwhelm X% of fat? So let's just put that one to bed.
Effectively, unless you're already close to that goal percentage can P90X deliver "ripped" or just the "getting" part of getting ripped?
And if the best it can deliver for the majority is the "getting" towards ripped, again, a person might ask, is P90X the best way to do it?
o Those Before and After Pictures
Given everything we've looked at above, let's come back to a few of those before and after pictures.
For Women, let's take Amanda for example.

We don't know her stats. That is we don't know her starting BF% or her final one, but what's changed in this photo? What don't we see? A six pack. The abs are angled. Is there less fat? yes. Is there more definition. Yes. Does it look like she's lost more than the 6-12 pounds? No. Has anything else, beside the expression on her face, and the sucking in of the gut changed visibly? No.
Then there is KatieV. Again, what's changed?
IS katie sucking in her gut in the day 1 photo? How about on day 90? Is she already pretty lean? Look at the waist circumference at the hips. Much change? So while the photo looks really cool, the *actual* change is not incredible. And since the arms haven't seemed to have changed, i'm guessing weight loss, a good base of fitness already, and with three days a week of endurance abs on top of all the rest of the workouts, the abs will show. Congratulations! This participant hit the sweet spot.
Is this result what any gal who passes the P90X fit test can expect? As we've seen, realistically, that would depend on a number of factors, particularly starting BF% and realistic expectation of caloric deficit over the 12 weeks. If one starts at 24% bodyfat, will P90X take a person to 14%? No. Remember in the research above 6 months of a slightly more intense workout regimen than P90X net 2% lean mass improvement, 10% bf% reduction. That's 21.4% in 24 weeks, not 12.
And with the guys?
What about their before and after photos?
Really look at the photos. From angle, to lighting, to mass, what's going on? Mainly body fat changes?

Without having access to the actual measurements from before an after we don't really have anything concrete to go on about the degree of change. What we can see is that most of the guys posted as P90X success stories already have some muscular definition in their before shots, even though pose and lighting is not optimized to show this before aspect. Look at the second gentleman in the picture above. He's plainly experienced at workouts and is already at a lower body fat %; he will likely be building lean mass out of the gate, and trimming body fat by the little he needs for the lighting in the after photo to create an effect. Nice lat flare.
The above photo crit is not to take away from anyone's accomplishments on P90X, but to put the results - and expected results - in context, and to look at these photos with a greater reality lens, based on the little detail we actually have.
Not that there aren't some rather wild whoppers on the P90x site.

"Lost 30% body fat" sounds fabulous in this picture, doesn't it? But let's put it in context. We can see some of DavidC's abs - so there's a fat level of 10% or a bit less. That means that a guy who is already skinny, as he seems to be - say at 12% minus 30% of that = 8.4 percent. Definitely in ab-seeing zone. That seems like a very high result to me for someone who's already skinny, but let's take it as true. The point is that he begins the program already close to a Ripped bf%. All the guys in the success stories seem to do so. Well they have to, don't they?
So what's going on with his shoulders that do look bigger? Gotta love all those pull ups.
As we've seen, based on what we know about muscle building, it usually requires caloric surplus AND it requires a program designed to facilitate muscle building adaptation and P90X is mainly an endurance program with a wee bit of hypertrophy-oriented training thrown in.
Since what we see is mainly in the shoulder and arms, and some fat off the waist, well, the diet might also just be at that right place where the caloric deficit was minimal to support muscular growth from the most repeated moves in the "resistance" section: pull ups and push ups (we'll come back to this in part 3). Again, well done. Unusual, but well done. Why do we so rarely see people's legs in these shots, hmm?
In general, what we do know, when we really look at these photos is that we are not seeing people make super weight loss changes OR muscle mass changes. These are relatively close to lean people, getting more lean.
Another question might be: if one is in this happy position of being within sight of lean-ness, is P90x the best way to get there?
o Summing Up: P90X and getting Ripped.
If we start with the simple premise that the main ingredient of of "getting ripped" - signified by 6 pack abs - is first to achieve a particular bodyfat% and second to have some hypertrophy of muscles to show through the skin, then we can assess P90X.
We've seen that P90X is *primarily* a circuit training program that's been tuned for fat burning, not hypertrophy - even it's Ab Ripper X program is endurance rather than hypertrophy. As such, despite the X and extreme labels, P90X workouts are conservative: rehab, novice, obese friendly. Surprising, isn't it? The very stuff of fat fit boot camps.
We've also seen that its diet plan is *very* conservative in terms of weight loss. 6-12 pounds total in 12 weeks.
Thus, we might ask,
To the first question we already have the answer: people already close to that target body fat percentage.
To the second question, we've already had some sense that P90X may not be the best way to get the results in promises. Part three will look at alternatives, which will include nutrition alternatives, as the short answer is yes, there are other what one may even call more balanced alternatives to P90X.
To the third question, well, answer two does here as well.
So what do we have?
Program assessments:
My hope is that with the above information, folks are better able not only to assess the claims and supposed results of P90X with a critical eye, but ANY workout program.
So, next time an infomercial promises you'll lose fat in just a few weeks and it's promoting a device or an exercise routine, look at where the diet plan is hiding. It's usually something like "combined with diet and rest" or something similar.
If the device or program promises muscle gains, again, look for the diet plan AND look at the type of routines being promoted. Are they hypertophy inducing, strength and power or are they, like P90X, safe, novice, fat burners, dressed up as hypertrophy or strength or power?
o Alternatives?
At the end of the day, while P90X is fine for what it is - a novice boot camp type endurance/foundation workout - it's a 12 week program. It's a package that uses bells and whistles around marketing illusions like muscle confusion, nutrition confusion, lots of moves, lots of workouts, and lots of diet changes. It seems it's got all these components to keep us busy, entertained, and hooked enough to buy the product: there's a lot of stuff in here; it must be great.
And then if we actually use the program (most people buy health dvds and don't use them, apparently), that variety is there, perhaps not only to keep us engaged but again to think we must be doing something great to achieve our goals.
As we've seen however, P90X, despite all the hoopla, is actually a conservative program. Circuits are safe; the nutrition program is safe. No major changes; no law suits from health risks. Is it the optimla approach to achieve "getting ripped" - safely?
Let's put it this way, if after looking at what's on the label and comparing it with what's in the tin, and you decide you might not want to do P90X but you still want to get lean, add some muscle, get strong etc, you may want to consider some alternatives.
In part three, i'll go over a few examples of programs and approaches both for workouts (part 3b) and nutrition (part 3a let me know what you think of this one - i'm kinda happy about it) so again, a person looking for an approach will have more information with which to assess whether a program is right for them.
See ya next time.
Related Posts:
The following therefore is more or less a worked example of applying/deriving this assessment via a critique of P90x - a program billed as an "extreme" workout (+ diet) specifically designed for practitioners to 'get ripped.' It's pretty detailed, so long. It looks at the exercise program first and then the nutrition program in the context of its promised results.

In Part 1 of this reflection/critique of P90x we looked at the core P90x concept of "muscle confusion". We also poked at the rationale behind a few of the "bring it" program's routines within this "muscle confusion" context. The conclusion was, based on what's known about physiological adaptations that occur in a 12 week program by novices/deconditioned athletes - P90X's target market - muscle confusion is basically a marketing gimmick.
In this second of this three part series, i'd like to look at the concept of "getting ripped" that is a key part of the P90X delivery promise.

In Part 3 we'll look at alternatives to the two core parts of P90X, but in the right order (a) diet (from places one doesn't usually think about diet - it's not just about the food) and (b) workout practices (they're both practices)
As i said in part 1 and will say so again here, there's nothing wrong with anyone wanting to do - or actually doing - P90X or similar- the routines are "not considered harmful," to draw on a computer science trope (at least not too harmful - we'll see more in part 3b).
What we might ask about P90X is does it deliver what's on the tin? Will anyone who passes the P90X fit test and is therefore deemed "ready" to do P90X "get ripped"? - and in P90X's definition, that pretty much means, at a minimum, have a six pack.
P90X suggests that if you follow it's program, you will be "transformed" from "regular to ripped" in 90 days. That's its formula: do the workouts; follow the diet. So we're going to look at each part of that formula against some objective criteria for ripped-ness.
Basic necessities of Getting Ripped by which to assess P90X capacity to deliver:
There are fortunately only two things involved in getting ripped, level of importance listed here:
- bodyfat percentage - known bf% level for being able to see muscle definition
- muscle density/mass - what will be seen beneath the skin once at that bf%
RECIPE/FORMULA ASIDE for 6 Pack
If you want to skip the rest of the article here's the recipe for 6 pack abs:
- Get a diet that will get you below 10% body fat if a guy and below 15% if you're a gal. See part 3a for nutrition approach suggestions
- Do either this abs hypertrophy routine as prescribed, or get this book, bullet proof abs, and do its routines. Both have been tested. But NOTHING will show without getting down to that bodyfat %.
As to why this is the recipe, well that's in the rest of this article.
Results from this article:
- Based on this assessment criteria, at the end of this article a person will have some tools with which to assess the claims of an exercise / diet program to deliver the promised results.
- With these tools the person will be able to make an informed choice about whether that program suits their goals.
First, there are tons of 12 week programs out there, all promising grand things. Where do we get our information about what works in these programs? Usually from the programs themselves. But we saw in the first part of this series that P90X's key concept "muscle confusion" is more marketing than fact, especially in the context of deconditioned or novice trainees. So are the before and after shots for P90X's amazing transformations that seem to be portrayed also a gimmick? How can we make this assessment.
Second, i'm guessing that folks who choose to do P90X or other 12 week transformations may know about as much about how fat loss and hypertrophy really work as i did when i started the program: less than i thought i did, and so pretty accepting of the way P90X presents each of these: exercise first, diet second, bf% is just a measure of progress.
The reality, as we'll see, is very much different: diet has to be first, exercise is second and bf% is, in the context of "getting ripped" a very specific target, and one that can be reasonably calculated to determine the length and intensity of a program to deliver desired results.
So to begin, let's begin with where P90X puts its energy first: exercise.
o Muscle Building Very Basic Basics.

Likewise, those men's before and after pictures in P90X (like the ones fo JonC, left) seem to imply that muscle mass will accompany the program. Hmm.
There's a lot we don't know about how muscle growth works, but there's a couple of things we do know: to build muscle we need two things: caloric surplus and appropriate muscular stimulation to force an adaptation. In this case, that adaptation means laying down new muscle fiber and so getting some muscle growth. Muscle growth also pretty much requires eating more rather than less: we want more body mass - in these case muscle tissue - the resources for that tissue have to come from somewhere. For us, that's the right nutrients - i.e. food.
Muscle in Two Parts:
- We create a demand for adaptation (more myofibrils) by the right type of stimulus: hypertrophy inducing effort.
- We then need to provide the the building blocks to support the adaptation.
- we can eat all we want to support muscular adaptation, but if we're not pushing our muscles appropriately to adapt, then they have no reason to change (grow/get bigger). The result is we'd just get fat.
- The converse is also true: even with the best hypertrophy program going, if we're not providing the right material to feed the growth, muscle building will be stymied.
That said, here's a factoid from Christian Thibaudeau's excellent and recommended discussion of mass building: with someone (read male in this case) totally committed to muscle building, getting diet and workouts just so, the range of muscle building to expect is .25 to .5lbs of *dry* muscle per week. In the real world that non-fat weight would show up with an additional 40% from additional water/gylcogen. So ten pounds of muscle shows up more like 14lbs on the scale. But whether 10 or 14 pounds of fat free mass let's call it, at .5+ pounds a week, 2 pounds a month, that also means five to ten perfect months to get that 14 pounds.
Here's another factoid from that article - a person sitting at say 120lbs of lean mass (weight minus fat) would need to eat 2440 calories a day to start growing mass with those optimized workouts.
UPDATE Sept 28 '09 - Dustin in the comments below asks why does one have to be in caloric surplus? Let me bring the reply up here. First, read Thibadeau's article above with the reference to a construction analogy for how muscle gets built.Assuming that P90X was designed to promote muscle mass gains (it isn't), at the best, a normal guy would put on 3-6 lbs of muscle plus another 1-2 ish of water/glycogen. So 5-8'ish pounds. And that's in a program where one is eating to GAIN mass combined with workouts to produce mass. Is that P90X? No.
Again, a lot about muscle building is still being worked out, but there are some basics: doing sufficient work to cause hypertrophy of whatever kind means that muscle fiber is getting damaged - torn down in the body building lexicon. That damage triggers muscle cells to signal to related cells to say we need to expand the capacity of some of these muscle fibers cuz they're being asked to do more. Without the right fuel in the system for that growth to happen, it doesn't happen. So let me continue Thibaudeau's analogy now:
Perhaps you just decide you want a bigger garage, so step 1, you knock down a wall of your garage (like what workouts do to muscle - they really do wreak havoc with muscle fibers). Now what? Perhaps that wasn't the best first step, but now you need more bricks (protein) and you need some funds (carbs) to hire workers and expertise to get the space rebuilt.
Turns out, perhaps without the best planning, you only have a set amount of bricks to do do the job - and you only have a set amount of cash right now to pay for the labour.
So effectively, you're short on cash and your short on bricks, so your project manager says "this is the best i can do" and rebuilds the wall more or less to its former level and gives you a bit more room at one end of the shed with clever use of storage and a few extra bricks it was able to scrounge.
Please NOTE. I'm not saying one can't build SOME muscle in caloric deficit. I'm saying it's NOT OPTIMAL. All things being equal it is sometimes possible to build lean mass when in a caloric deficit but it is really sub optimal.
Why should be clearer now: if our focus is to burn fat, we're going into caloric deficit, and our system is working to maintain energy levels and keep systems going. It's not going to have the resource to give over to a big construction job at the same time, when a lot of those resources that would in surplus be used for building are being used for maintenance and fuel.
Even before we get to the type of workouts, a basic question we might ask is, is the diet in the program one of caloric surplus or caloric deficit? So whether you gain muscle on P90X or not will largely depend on how much of a caloric deficit - or not - you're in during the program. That discussion is below.
Generally, P90X aims to have a person in caloric deficit - without which fat loss will not occur. Period. So here's a potential contradiction, not unique to P90X, but certainly rather brushed under the carpet in this case: if muscle mass building requires caloric surplus, but the program keeps someone in caloric deficit throughout, how can muscle be built? This isn't a Zen Koan. The inverse may help: if one is eating enough for muscle building, what kind of caloric deficit is going on and what kind of fat loss is occurring?
Another question: if P90X runs a person into caloric deficit, how explain those before and after pictures that *seem* to show more muscle mass at the end of 90 days?We'll come back to these questions. First, let's look at how we might understand what kinds of muscular adaptations P90X promotes.
Kind of Strength Foregrounds Kind of Muscle
Another part of the muscle building adaptation is type of load, rest, volume and recovery. As we said above, to get new muscle fibers to be laid down, there has to be a demand for that kind of growth. As we saw in part 1, also, the type of adaptation in the first 8 - 12 weeks of a resistance program for a neophyte is mainly neurological. That means muscle that already exists is learning how to support the loads. Only once the challenge goes beyond that initial adaptation, effectively, does new muscle get laid down IF the challenge requires that adaptation. Does P90X require that hypertrophy adaptation?
o P90X: endurance training disguised with weights.
In the P90X program, 3 out of the 6 days a week are "resistance" oriented workouts (the other three are "cardio" oriented). But what kind of resistance training are we talking about? Turns out they're something known as circuits.
Circuits in general are usually about putting several exercises together, doing one set of each exercise with little rest between moves. The weights used in each of these sets has to be sufficiently light to be able to move between exercises with limited rest.
Indeed, in P90X resistance workouts, the rep ranges are anywhere from 7 to 12. The only instruction on how to pick a weight is so that one will "feel the burn" in the last couple of reps.
Based on the above template, we get the following in the resistance routines: 20+ minute circuits, 1 set per move, mid to high reps, critically: no rest between sets. At most, there is 60 seconds active recovery between circuits 2-3 circuits.
We've said these workouts are circuits but when rest between sets is taken out of the equation for this kind of period, we're looking at endurance or stamina training rather than muscular strength.
Let's look at how "strong" is used as a term in P90X. "Stronger" throughout the P90X program is largely defined by being able to endure, keep up, do as many reps of a move as Horton and Co perform with as little rest as possible over the course of the hour. That's endurance strength. The adaptations developed in the muscles are mainly aerobic in nature, which means that the muscles get,
Endurance is an important capacity for an athlete - the ability to keep going in an activity is pretty critical. Indeed, for someone just starting out on an exercise program, endurance strength is often the first phase of a program that will eventually get to other kinds of strength, like hypertrophy, speed and power. It's foundational.
* Increased aerobic enzymes
* Increased mitochondrial density
* Increased capillaries
* More efficient contractions
* Possible changes in fiber type (e.g., fast twitch to slow twitch.
Foundational. Basic. Upping oxidative capacity. Not building mass, but improving the muscle's capacity to use oxygen which means greater work capacity for longer. That sounds great for health but doesn't sound like a "getting ripped" program, though, does it? And saying that, are circuits the best way to build this capacity?
Here's an assessment of the kinds of circuits P90X uses for training:
We can draw several conclusions from the analysis of groups of individuals who have participated in studies involving prescribed circuit training for a prolonged period of time.
* Circuit training is not optimal for increasing cardiovascular fitness when compared to High Intensity Interval Training (HIIT)
* Circuit training is not optimal for increasing cardiovascular fitness when compared to cardiovascular training when the heart rate is at the target heart rate
* Circuit training is not optimal for forcing anaerobic adaptation when compared to a strength training program
* Circuit training is not optimal for forcing aerobic adaptation when compared to an aerobic training program
* Circuit training is not optimal for increasing muscle size when compared to a hypertrophy-based training program
* Circuit training is not optimal for increasing strength when compared to HIIT or a regular resistance training program
* Circuit training is useful for burning additional calories and stimulating blood flow to the limbs
* Circuit training is useful for squeezing lots of exercise into a short time frame
In light of everything you just read, can anyone actually benefit from circuit training? The answer is yes, but obviously the benefits are not optimal for experienced athletes. Subgroups of trainees such as the elderly, young, rehabbing, novice, or obese athletes might do well circuit training optimized in the following ways:...
# Goal #3: burning calories and fat.
Since we are not able to burn fat unless we are working aerobically, most circuit training programs will not suffice unless each exercise is performed for a duration of at least 4 minutes. In this case we can only hope to burn calories, and possibly a little fat, by moving rapidly to each exercise station and maintaining a steady rhythm. Ultimately the client will be exercising not at, but close to, the anaerobic threshold.
The above Goal 3 Sounds like P90X's "resistnace" workouts (and all the other P90X workouts, too, for that matter). That latter point then is as close as P90X comes to having an effect, and it's not strength per se or muscle building. It's endurance: keep the movement going to keep the heart rate up for periods longer than 4 minutes; improve oxidative capacity (ability to burn fat).
Recap on P90X Circuits
SO what have we learned? Circuits are, at best, novice routines, or for sick or rehabbing, or obese. THis doesn't sound like the deconditioned x-jock population P90X is supposedly targeting. So, P90X, as point 3 above, has tuned the workouts for what? Fat burning. Not muscle building.
Our question at this point might be, are these kinds of circuits the best way to burn fat for a deconditioned jock AND add "lean muscle" that the diet guide says will make up for not seeing much of a change on the scale?
Consider this: in a 24 week program study designed specifically to look at the effects of single set style circuit training vs periodized multi-set program, the lean mass changes for women were 2% lean mass gain over that 6 month period vs 8% gain with the alternative protocol. Likewise percentage body fat went down by 10% in 6 months (eg, someone at 24% went to 21.6%) vs 25% with the alternative protocol (that 24% person wend to 18%).
So, these workouts are *mainly* fat burners/endurance builders, and don't seem to be necessarily the best approach to optimize fat burning or lean mass building. In part 3 we'll look at some of these alternatives in more detail.
Aside: P90X+ Let me cue up here that the P90X+ program is very similar in kind to P90X: 5 more P90X style workouts, but with fewer people on the set. These workouts are to mix into P90X. So one effectively re-does P90X, swapping out some P90X routines for the new ones. So, once more into the breach: more circuits, more little rest between moves. So, effectively, more of the P90X endurance same.
P90X - resisting muscle growth?
We now have a sense of what it takes to build muscle: caloric surplus - we need more to build more; and we need specific types of load/recovery/volume for muscles to grow. In looking at P90X, we see that the type of strength it's geared to building is endurance, not hypertrophy. The muscular adaptations are around fuel consumption - better oxidative/fat burning capacity - rather than mass building.
In sum, based on their design, P90X workouts - including the "resistance" workouts - are circuits, tuned for fat burning rather than muscle building.
Questions a person considering P90X might have at this point are therefore
- a) does the P90X workout focus on fat burning match one's goals?
- b) if so, is the P90X circuit approach the best way to achieve these goals?
Another question might be "but what about getting ripped? doesn't P90X deliver at least on that?"
At the top of this article we looked at getting ripped as body fat percentage first and muscle growth second. Ok, it's not delivering on muscle growth per se, so time to look at the diet side of P90X and we'll come back to its fat burning disguised as resistance training.
o The simple formula for a 6 pack? Body Fat Percentage
While i don't think he coined the term, colleague Rannoch Donald of Simple Strength may often be heard to say "there are no secrets." So here's a big non-secret to 6 pack abs: body fat percentage.
What P90X does not come out and say ever, anywhere, is that for a guy to begin to see his abs, he has to be at about 10% BF (in my experience of the guys i've worked with, it's actually below 10%); for gals, we have to be at about 15% or less. It's really that simple.
I wish i had known this at the time i was doing P90X. Rather than focusing on dropping 10 pounds, i might have looked into how feasible/healthy it would be to drop 10% body fat in 90 days, and how to optimize that. That *might* have helped me figure out right there if Kenpo-X and Plyo-X were the best ways to achieve that goal, or if maybe looking into diet-x might have been more profitable.
Indeed, what more and more research shows is that the only way to get to that ripped level BF% is calorie restriction. Calorie restriction (ie, diet) comes first; exercise is second. P90X of course doesn't say this fact either. It's selling "muscle confusion" first; nutrition way second.
o P90X Diet Math
This is not to say that PN doesn't get diet. PN has a diet book. And it's a corker.
What the Nutrition Plan for P90X says about the role of nutrition in getting ripped is as follows:
Why Diet Matters P90X® Nutrition Plan A large body of scientific evidence shows that diet and exercise work hand-in-hand to promote fitness and physical performance. One reason for this symbiotic relationship is the energy equation. When you expend more calories than you consume, you burn body fat (aka "stored energy") and build lean body mass—but because you need energy to exercise, every calorie you eat must be of the highest quality to get you over the hump.:Well, as we've seen, ya don't always build lean body mass just because you're burning more calories than you consume; and as we've seen, ya don't always build lean body mass when you're working out and reducing caloric intake, either. .25 - .5 pounds a week if EATING to gain that muscle.
Please let me note again that one can gain lean mass while in caloric deficit. It's just not a lot. If one is gaining .25 lbs by eating for gain, and working out for muscular growth, how much fiber can be built when eating for loss and doing endurance not hypertrophy workouts? It's a real challenge.
So what's the P90X diet advice?
IT's amazing. Every 4 weeks, the macronutrient ratio changes - to match the demands of this incredible program:
Phase I: Fat Shredder - Days 1-28
Phase II: Energy Booster - Days 29-56
Phase III: Endurance Maximizer - Days 57-90
The above phases map to the following macronutrient ratios:
Macronutrient Goals in Each Phase
Phase I - Protein 50%, Carbs 30%, Fat 20%
Phase II - Protein 40%, Carbs 40%, Fat 20%
Phase III - Protein 20%, Carbs 60%, Fat 20%
How are these ratios achieved? By one of two ways: either follow the portion suggestions of how many portions of each type of macro nutrient to have, or by following the meal plans so even less to think about. Just eat exactly what it in the book, when it says to eat it.
Indeed, the portion approach is not unique to P90X but it is complex: Have X portions from the Protein group; Y portions from the Carbs and Z from fats.
This number of portions approach is to help avoid calorie counting. But the result also means that there are only three "sizes" of menu to fit everyone. Not exactly optimized for fat loss. Consider the following.
Calories Per Day - Three Sizes fits All
Here's how a person determines how many calories they're going to eat a day - what their Total X+Y+Z portions will equal.
Nutrition Level Chart
EA = 1800-2399 = Level I 1800 calories per day
EA = 2400-2999 = Level II 2400 calories per day
EA = 3000+ = Level III 3000 calories per day
Who is losing anything here and by how much? Hmm. This means someone who requires 2399 calories for maintenance in Level 1 will suddenly be on a 600 calorie a day deficit. In 6 days of workouts, that's 3600 calories - a little better than a fat pound. Someone who's closer to 1800 cals for maintenance will be losing far less in that week. Maybe nothing following this meal plan. And indeed, there's a real potential Achilles heal to this approach. IT's how one's Level is calculated: it assumes that ALL P90X workouts burn 600 calories.
Let's look quickly at how one figures out their energy level.
Determining Your Nutrition Level
1. Calculate your RMR
Your Body Weight x 10 = RMR
2. Calculate your Daily Activity Burn
RMR x 20% = DAB
3. Calculate your Energy Amount
RMR + DAB +600 CALS for p90x workouts = EA
Now, RMR stands for resting metabolic rate, and i have yet to find anywhere where it is simplified to body weight times 10, since it regularly takes into account height and other constants, etc, but let's set that aside and just go with this formula.
Here's an example:
1. a 140 lb gal of unknown height has an "RMR" of 1400
2. 20% is 280
3. 1400 + 280 + 600 = 2280 calories.
So that puts the person in EA of Level 1, 1800 calories a day. That would be, all things being equal, a 480 calorie a day deficit, which over 6 days, is 2880 calories, not quite a pound.
A gal at 130 is also in EA Level 1, and also told to eat 1800 calories, and that's only
1300+260+600= 2160, a difference of 360 cals a day, which in 6 days is 2160 - even further away from a pound a week.
A smaller gal at 120, 1200+240+600 = 2040 calories now at 1800, is eating only a 200 calorie a day deficit.
That's 1200 in a week, three weeks to lose a pound.
And that's IF those workouts are really 600kcals a piece. They are not. Or let's put it this way: it depends. Yoga X at about 80-90 mins is 200 calories; Kenpo-X, at 45 mins, is maybe 275 - 435. If you're totally "bringing it" maybe a bit more. So your heart rate is pushing it's aerobic envelop.
This math begins to explain the 6 pounds total i took off during my religious observation of P90X doubles - where i was keenly going for 600 cals a day from double workouts.
Special Case:
If someone is in the EA Level 3 of "3000+" of course potentially coming down from say 4250 a day to 3000, the possibility is that, all things being equal, one will be losing 2.5 ish pounds a week, 30 pounds over the 12 weeks.
o Body Fat X
P90X says that weight of course is "relatively meaningless" since a better measure is body fat percentage. Why? P90X doesn't explain in this guide why body fat percentage is more important than what's on the scale. We're simply told body fat % is the measure of progress.
So how does P90X use body fat %?
In the "relatively meaningless" way one uses weight? that it goes down? That's pretty much it. With one sweetener. It provides three body fat ranges for folks to feel really successful after completing the program:
Fit, Athlete, Elite Athlete.Nice correlation implied: if you have a BF% at the third level, maybe you're an "elite athlete" (No question asked of course that if you have that BF% and you're not an elite athlete what else might you be?)
But there's no correlation between Body Fat % and ripped. It does not come out and say that unless you hit that "Elite Athlete" bf% range, you will not be seeing that 6 pack. It's that simple.
BF% - supposedly important to P90X, but based on who and what army? A few questions a person may have at this point about a program claiming that bf% change is critical may be:
- If body fat percentage is so important, and the meaningful way to measure progress, what are the expected body fat % changes on this program for men and women?
- IF it is that important why is it so cavalier about how to take these measures? The guides don't actually tell anyone how to do this - the closest it comes is to say "get a caliper"from their web site.
Other than just maybe/maybe not caloric restriction, the P90X diet guide seems to reflect Nutrition Confusion, perhaps to match the exercise program's muscle confusion, discussed in part 1. Over the course of 12 weeks, as said, the macronutrient ratio of the program changes 3 times. There are arguments in the data about why a person would want to start with higher protein and lower carbs and then by the end of the program invert this, but not really.
- Fact: we know that if you're in caloric deficit, you will lose weight.
- Fact: we know that in short term programs (8-12 weeks) that higher protein diets *throughout* the program tend to have slightly faster higher initial weight loss than other programs, but that after that period, loses level out.
Here, the idea seems to be (it's not explicit), is that to kick starting the diet, bringing up protein and reducing carbs, will fire up fat loss. Hmm. But after that first month, because people will have been working so hard, they'll need to keep brining up the carb level to have the energy to survive it. There's a few notices about extending a given phase if one wishes, but the guidance is pretty much stick to the plan, stan.
Haven't seen the studies to support this kind of short term mix-it-up. Nutrition is complex. But a higher level fact we do have the resources to say is that fat loss happens with caloric deficit. Is that really achieved in the P90X diet plan?
And let's look at those figures again: the predicted weight loss on this program is 6-12 pounds. A half pound to a full pound a week. That's it. Unless you're in the 3000+ a day with a serious + a day. Honey, i can get you on a diet tomorrow with NO exercise involved that will guarantee to meet or double those numbers. No sweat. Literally. So what is someone doing on P90X if the goal is to get lean, to "get ripped"?
o Is What's on the Label What's in the Tin? Is this a Getting Ripped Diet?
P90X promises "getting ripped" as part of its objective.
If we can accept the premise that caloric deficit is required to reduce fat in order to see one's 6 pack, a key part of the "getting ripped" concept, we have to ask if P90X will really deliver this result?
Based on looking at the differences in caloric deficits to be achieved of just a few points of the Level I scale, for instance, it's pretty clear that the amount of caloric deficit to be achieved in following this program is likely to be highly variable, and likely at most about a pound a week for the people at the outside of the Level, and likely considerably less given that the caloric burn calculated for each workout is exaggerated.
Who will get Ripped on P90X?
Knowing that we need to get to a low body fat % to get the "get ripped" look, and knowing how much caloric deficit we need to burn FAT (as opposed to just lose weight), and knowing that there's such variation of caloric deficit with P90X and that at the most it's calculated to drop about a pound a week of fat for anyone who starts at eating 2999kcals a day, AT BEST, what does this tell us about the likelihood of getting ripped on P90X?
IF all the person needs to lose is 6-12 pounds to achieve the ripeed body fat percentage, then it's possible to get to the Ripped Place in the 90 days.
Otherwise, how can it happen?
Now, we know that *if* one gains lean mass and doesn't lose ANY body fat, their BF% goes down. True enough. But how much lean mass can one reasonably gain in 12 weeks with P90X such that it will effectively overwhelm X% of fat? So let's just put that one to bed.
Effectively, unless you're already close to that goal percentage can P90X deliver "ripped" or just the "getting" part of getting ripped?
And if the best it can deliver for the majority is the "getting" towards ripped, again, a person might ask, is P90X the best way to do it?
o Those Before and After Pictures
Given everything we've looked at above, let's come back to a few of those before and after pictures.
For Women, let's take Amanda for example.

We don't know her stats. That is we don't know her starting BF% or her final one, but what's changed in this photo? What don't we see? A six pack. The abs are angled. Is there less fat? yes. Is there more definition. Yes. Does it look like she's lost more than the 6-12 pounds? No. Has anything else, beside the expression on her face, and the sucking in of the gut changed visibly? No.
Then there is KatieV. Again, what's changed?

Is this result what any gal who passes the P90X fit test can expect? As we've seen, realistically, that would depend on a number of factors, particularly starting BF% and realistic expectation of caloric deficit over the 12 weeks. If one starts at 24% bodyfat, will P90X take a person to 14%? No. Remember in the research above 6 months of a slightly more intense workout regimen than P90X net 2% lean mass improvement, 10% bf% reduction. That's 21.4% in 24 weeks, not 12.
And with the guys?
What about their before and after photos?
Really look at the photos. From angle, to lighting, to mass, what's going on? Mainly body fat changes?

Without having access to the actual measurements from before an after we don't really have anything concrete to go on about the degree of change. What we can see is that most of the guys posted as P90X success stories already have some muscular definition in their before shots, even though pose and lighting is not optimized to show this before aspect. Look at the second gentleman in the picture above. He's plainly experienced at workouts and is already at a lower body fat %; he will likely be building lean mass out of the gate, and trimming body fat by the little he needs for the lighting in the after photo to create an effect. Nice lat flare.
The above photo crit is not to take away from anyone's accomplishments on P90X, but to put the results - and expected results - in context, and to look at these photos with a greater reality lens, based on the little detail we actually have.
Not that there aren't some rather wild whoppers on the P90x site.

"Lost 30% body fat" sounds fabulous in this picture, doesn't it? But let's put it in context. We can see some of DavidC's abs - so there's a fat level of 10% or a bit less. That means that a guy who is already skinny, as he seems to be - say at 12% minus 30% of that = 8.4 percent. Definitely in ab-seeing zone. That seems like a very high result to me for someone who's already skinny, but let's take it as true. The point is that he begins the program already close to a Ripped bf%. All the guys in the success stories seem to do so. Well they have to, don't they?
So what's going on with his shoulders that do look bigger? Gotta love all those pull ups.
As we've seen, based on what we know about muscle building, it usually requires caloric surplus AND it requires a program designed to facilitate muscle building adaptation and P90X is mainly an endurance program with a wee bit of hypertrophy-oriented training thrown in.
Since what we see is mainly in the shoulder and arms, and some fat off the waist, well, the diet might also just be at that right place where the caloric deficit was minimal to support muscular growth from the most repeated moves in the "resistance" section: pull ups and push ups (we'll come back to this in part 3). Again, well done. Unusual, but well done. Why do we so rarely see people's legs in these shots, hmm?
In general, what we do know, when we really look at these photos is that we are not seeing people make super weight loss changes OR muscle mass changes. These are relatively close to lean people, getting more lean.
Another question might be: if one is in this happy position of being within sight of lean-ness, is P90x the best way to get there?
o Summing Up: P90X and getting Ripped.
If we start with the simple premise that the main ingredient of of "getting ripped" - signified by 6 pack abs - is first to achieve a particular bodyfat% and second to have some hypertrophy of muscles to show through the skin, then we can assess P90X.
We've seen that P90X is *primarily* a circuit training program that's been tuned for fat burning, not hypertrophy - even it's Ab Ripper X program is endurance rather than hypertrophy. As such, despite the X and extreme labels, P90X workouts are conservative: rehab, novice, obese friendly. Surprising, isn't it? The very stuff of fat fit boot camps.
We've also seen that its diet plan is *very* conservative in terms of weight loss. 6-12 pounds total in 12 weeks.
Thus, we might ask,
- for whom is P90X likely to be a "get ripped" success story?
- is P90X the best way to achieve this result for this group?
- what are other people supposed to do who want to 'get ripped'
To the first question we already have the answer: people already close to that target body fat percentage.
To the second question, we've already had some sense that P90X may not be the best way to get the results in promises. Part three will look at alternatives, which will include nutrition alternatives, as the short answer is yes, there are other what one may even call more balanced alternatives to P90X.
To the third question, well, answer two does here as well.
So what do we have?
Program assessments:
- - Where is the Diet plan? what are its predicted deliverables?
- - how is progress measured?
- - what are the predicted changes in these measures over what period?
- - what kind of workouts/rest periods are being presented? - endurance/power/hypertrophy
- - what kind of transformations are predicted from these workouts? what are the measures?
My hope is that with the above information, folks are better able not only to assess the claims and supposed results of P90X with a critical eye, but ANY workout program.
So, next time an infomercial promises you'll lose fat in just a few weeks and it's promoting a device or an exercise routine, look at where the diet plan is hiding. It's usually something like "combined with diet and rest" or something similar.
If the device or program promises muscle gains, again, look for the diet plan AND look at the type of routines being promoted. Are they hypertophy inducing, strength and power or are they, like P90X, safe, novice, fat burners, dressed up as hypertrophy or strength or power?
o Alternatives?
At the end of the day, while P90X is fine for what it is - a novice boot camp type endurance/foundation workout - it's a 12 week program. It's a package that uses bells and whistles around marketing illusions like muscle confusion, nutrition confusion, lots of moves, lots of workouts, and lots of diet changes. It seems it's got all these components to keep us busy, entertained, and hooked enough to buy the product: there's a lot of stuff in here; it must be great.
And then if we actually use the program (most people buy health dvds and don't use them, apparently), that variety is there, perhaps not only to keep us engaged but again to think we must be doing something great to achieve our goals.
As we've seen however, P90X, despite all the hoopla, is actually a conservative program. Circuits are safe; the nutrition program is safe. No major changes; no law suits from health risks. Is it the optimla approach to achieve "getting ripped" - safely?
Let's put it this way, if after looking at what's on the label and comparing it with what's in the tin, and you decide you might not want to do P90X but you still want to get lean, add some muscle, get strong etc, you may want to consider some alternatives.
In part three, i'll go over a few examples of programs and approaches both for workouts (part 3b) and nutrition (part 3a let me know what you think of this one - i'm kinda happy about it) so again, a person looking for an approach will have more information with which to assess whether a program is right for them.
See ya next time.
Related Posts:
- P90X critique, part 1: "muscle confusion" real? yoga-x or plyo-x to be x'd out?
- P90X alternatives: part 3a: nutrition for fat burning, ripping and building
- p90X alternatives: part 3b: workout alternatives for time, variety of systems and quality
- MAKE PULL UPS FUN - rings review - they're a gas
- Athletic Bodies: what do athletes in different sports look like under their shirts?
- Cardio and Strength work: research showing they complement each other.
- Nutrition: ten habits for better eating (pdf download)
- perfect reps: not exactly a P90X concept - but huge benefit from thinking about each rep
- shorter workouts: six minutes to fitness part 1 and part 2
- help putting it together? - online training/nutrition consulting available with mc
Labels:
bf%,
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