Showing posts with label kenneth jay. Show all posts
Showing posts with label kenneth jay. Show all posts
Tuesday, September 15, 2009
Return of the Kettlebell Workout: Working Double Time Pre/Review
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Have you started your Return of the Kettlebell practice yet? What made you decide to give it a go?
Return of the Kettlebell is the latest kettlebell DVD/book from Pavel Tsatsouline. Return of the Kettlebell focussing on double kettlebell work. It also features some new moves up from Enter the Kettlebell(ETK)'s excellent Program Minium and Rite of Passage programs (described in this review) that have become standard in Hard Style kettlebell practice.
The main difference between ETK and RTK on a very basic level is the number of kettlebells used: ETK uses 1; RTK uses 2. Where ETK is an introduction and introductory program to kettlebell work for any level athlete, RTK assumes that people coming to RTK have already practiced and succeeded with both ETK programs: it assumes folks are very comfortable with hardstyle kettlebell cleans, presses, snatches, squats and deadlifts. RTK also introduces what may be new moves to people not familiar with GS Sport kettlebelling - putting a hardstyle spin on that practice - with both the Clean and Jerk (part of the trad GS Long Cycle) and the addition of a movement developed by Kenneth Jay of VO2Max training (review), Viking Warrior Conditioning fame. This new move is the Viking Push Press. Indeed, Kenneth Jay is featured throughout the RTK DVD as the main demonstrator of the moves for men; RKC Missy Beaver demos some particular variants for women.
SO why do double kettlebell work? Mike Mahler with his Aggressive Strength Training approach has already made a reputation for his crusade to demonstrate that (a) heavy double kettlebell work is an efficient and effective way to muscle gain and (b) this can be achieved on a vegan diet, too. His approach has largely been to marry heavy double kb work with Staley's escalating density training approach (more on EDT).
The promo material for Return of the Kettlebell promises at least similar results. It's a "program for explosive muscle gain." The approach is different, though.
It's clear from the protocols that they are designed to combine the best of what we know about hypertrophy and skill training to develop muscle mass (assuming one is eating to support that effort) based on reps, load, recovery (and overspeed eccentrics).
But underneath that focus on hypertrophy is a program that seems designed as well to support some power and endurance, too. How be all things to all people? Well, that would be the special sauce of how the training blocks are combined. If you're familiar with ETK, you'll see some familiar parts to RTK. There are some new twists here, though, in blending blocks of kinds of programs. This is not an upper/lower body split approach; this is a one type and another type approach, alternating.
On paper, (and on DVD) the program looks compelling. After a phase of working with it, believe me it feels compelling.
My reason for doing the program is really an exploration:
i've done Mahler's style of EDT with kettlebells (i love EDT), largely playing it quite safe with lower weights on presses (5 reps of 10RM as prescribed in EDT), swings, renegade rows, floor presses - that sort of thing - usually alternating sides on the low stuff and occasionally doing double presses.
With RTK, the focus is on 5RM pressing weights for doubles work, getting the volume up, getting the time down, and combining some demanding combinations and some intriguing blocks. So the exploration is with this rather controlled push - to make double kb work as a skill practical. And practicable. If does feel different to focus on this more intense kind of doubles work. And so far, i like the routines.
And also with RTK, i'm very glad to have I-Phase z-health in particular to apply the template approach to do Z-Health mobility moves mirroring the RTK actions between reps. This movement work has helped keep focus and movement precisions as consistent as possible, towards that perfect rep. In my experience this kind of attention can mean the difference between effortful, form challenged, and more effortless, efficient lifts.
With EDT (i said i love this, right?) the focus is on what work one can get done in 15 min. blocks. Upping reps each time. In RTK as with ETK the rep count is set; can you get the time down? the weight up?
The long cycle (clean and jerk) has become a core part of the RTK plan as well - intriguingly, it is approached quite differently than it seems to be in GS circles. Imagine if you applied ETK to the Clean and Jerk. Something like that.
Right now, as said, doing RTK is very much an exploration: what does this mean for a gal in particular? In ETK, Pavel makes a clear distinction between women's press requirements and men's to say we've completed the final ETK program. That distinction (purposefully or not) has not been made in RTK's program. Likewise, in GS circles, as far as i know, women do one arm C&J long cycles. Here there's no such distinction. It seems to be doubles all the way for all.
I'm not sure about the end point described in RTK: being able to do a strict clean and press with double kb's adding up to your weight. If this program delivers that, i will be moved: either i will be a whole lot stronger or i'll have lost a whole lot of weight.
In the meantime, i'm taking this one double press at a time. It focuses the mind. Really. Double snatches, double presses - they focus the mind. I'll be keen to see how it develops strength, too.
If you're comfortable with hardstyle kb's, are happy with Pavel's training patterns, RTK is well worth exploring. Tweet Follow @begin2dig
Return of the Kettlebell is the latest kettlebell DVD/book from Pavel Tsatsouline. Return of the Kettlebell focussing on double kettlebell work. It also features some new moves up from Enter the Kettlebell(ETK)'s excellent Program Minium and Rite of Passage programs (described in this review) that have become standard in Hard Style kettlebell practice.
The main difference between ETK and RTK on a very basic level is the number of kettlebells used: ETK uses 1; RTK uses 2. Where ETK is an introduction and introductory program to kettlebell work for any level athlete, RTK assumes that people coming to RTK have already practiced and succeeded with both ETK programs: it assumes folks are very comfortable with hardstyle kettlebell cleans, presses, snatches, squats and deadlifts. RTK also introduces what may be new moves to people not familiar with GS Sport kettlebelling - putting a hardstyle spin on that practice - with both the Clean and Jerk (part of the trad GS Long Cycle) and the addition of a movement developed by Kenneth Jay of VO2Max training (review), Viking Warrior Conditioning fame. This new move is the Viking Push Press. Indeed, Kenneth Jay is featured throughout the RTK DVD as the main demonstrator of the moves for men; RKC Missy Beaver demos some particular variants for women.
SO why do double kettlebell work? Mike Mahler with his Aggressive Strength Training approach has already made a reputation for his crusade to demonstrate that (a) heavy double kettlebell work is an efficient and effective way to muscle gain and (b) this can be achieved on a vegan diet, too. His approach has largely been to marry heavy double kb work with Staley's escalating density training approach (more on EDT).
The promo material for Return of the Kettlebell promises at least similar results. It's a "program for explosive muscle gain." The approach is different, though.
It's clear from the protocols that they are designed to combine the best of what we know about hypertrophy and skill training to develop muscle mass (assuming one is eating to support that effort) based on reps, load, recovery (and overspeed eccentrics).
But underneath that focus on hypertrophy is a program that seems designed as well to support some power and endurance, too. How be all things to all people? Well, that would be the special sauce of how the training blocks are combined. If you're familiar with ETK, you'll see some familiar parts to RTK. There are some new twists here, though, in blending blocks of kinds of programs. This is not an upper/lower body split approach; this is a one type and another type approach, alternating.
On paper, (and on DVD) the program looks compelling. After a phase of working with it, believe me it feels compelling.
My reason for doing the program is really an exploration:
i've done Mahler's style of EDT with kettlebells (i love EDT), largely playing it quite safe with lower weights on presses (5 reps of 10RM as prescribed in EDT), swings, renegade rows, floor presses - that sort of thing - usually alternating sides on the low stuff and occasionally doing double presses.
With RTK, the focus is on 5RM pressing weights for doubles work, getting the volume up, getting the time down, and combining some demanding combinations and some intriguing blocks. So the exploration is with this rather controlled push - to make double kb work as a skill practical. And practicable. If does feel different to focus on this more intense kind of doubles work. And so far, i like the routines.
And also with RTK, i'm very glad to have I-Phase z-health in particular to apply the template approach to do Z-Health mobility moves mirroring the RTK actions between reps. This movement work has helped keep focus and movement precisions as consistent as possible, towards that perfect rep. In my experience this kind of attention can mean the difference between effortful, form challenged, and more effortless, efficient lifts.
With EDT (i said i love this, right?) the focus is on what work one can get done in 15 min. blocks. Upping reps each time. In RTK as with ETK the rep count is set; can you get the time down? the weight up?
The long cycle (clean and jerk) has become a core part of the RTK plan as well - intriguingly, it is approached quite differently than it seems to be in GS circles. Imagine if you applied ETK to the Clean and Jerk. Something like that.
Right now, as said, doing RTK is very much an exploration: what does this mean for a gal in particular? In ETK, Pavel makes a clear distinction between women's press requirements and men's to say we've completed the final ETK program. That distinction (purposefully or not) has not been made in RTK's program. Likewise, in GS circles, as far as i know, women do one arm C&J long cycles. Here there's no such distinction. It seems to be doubles all the way for all.
I'm not sure about the end point described in RTK: being able to do a strict clean and press with double kb's adding up to your weight. If this program delivers that, i will be moved: either i will be a whole lot stronger or i'll have lost a whole lot of weight.
In the meantime, i'm taking this one double press at a time. It focuses the mind. Really. Double snatches, double presses - they focus the mind. I'll be keen to see how it develops strength, too.
If you're comfortable with hardstyle kb's, are happy with Pavel's training patterns, RTK is well worth exploring. Tweet Follow @begin2dig
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Sunday, August 16, 2009
Review of Kenneth Jay's Viking Warrior Conditioning for Proper VO2max training
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This post is a review of Kenneth Jay's Viking Warrior Conditioning (VWC) for "proper VO2max training" . The review goes over the book and includes notes from an interview with Kenneth Jay on some of the finer details behind the VO2max and lactic acid pushing protocols of Viking Warrior conditioning.
o Cut to the Chase overview/recommendation:
If you are an athlete who needs stamina, strenght and endurance - whether on the field or in the gym; in team or in solo sports, this is an excellent protocol for maximally efficient cardiovascular conditioning.
A few quick reasons:
o What's in this Review
The following review goes over who Viking warrior conditioning is for, how the book is presented, why the protocols presented are effective, how that's demonstrated, and why this book would be a great asset for strength and conditioning coaches, team coaches and athletes across the sports board, from cyclists to power lifters.
Who's this book for? Anyone who needs strength, stamina and power. Despite the fact that this book focuses on the use of the kettlebell snatch for its protocols, this book is not just for people devoted to the kettlebell. The kettlebell, and in this case, the single move the kettlebell snatch, just happens to be terrific for cardiovascular (CV) conditioning.
If you're an athlete who needs strength to move, stamina to keep moving and power to move something as effectively as possible, VO2max conditioning is a good idea.
Consider an athlete on a team where the team can go and go with skill and strength - right until about the last crucial ten minutes of the match. It's those last ten minutes that may just make the difference between having the concentration and energy to win against the other team.
Remember Andy Rodick at the end of this year's Wimbleton? Neck and neck with Federer till the last few minutes. Was it talent and skill or more energy reserves at that point that put Federer ahead of such a tight battle?
And what about just having the energy to get through a long day, whether that day is moving furniture or working out details of a troublesome project. Enhancing our capacity to move oxygen through our blood stream, improving its efficiency at doing so, and being able to work harder, longer for effectively less effort are all great things. These effects are great in an of themselves, plus they have super side benefits for health, longevity and well being.
o Caveat Before Starting
The only thing VWC assumes is that you already have some level of conditioning. That is, this is not a protocol for someone who is going from complete sedentary level to VO2 conditioning. Why?
Snatch Speed. The protocols in this book demand both skill with the kettlebell snatch in order to maintain perfect form with the KB when moving it quickly and repeatedly in both the down strokes (overspeed eccentrics) and the up strokes (explosive force).
Interval Effort. As Lyle McDonald summarized in an overview of the role of intervals in fitness, they're best suited to someone who has some base level fitness already. If just starting a fitness program, get used to moving first. And if you'd like to start moving with a kettlebell, excellent idea. I'd strongly encourage you to consider Enter the Kettlebell (reviewed here) for fitness, and Precision Nutrition (reviewed here) as a great habit building approach to nutrition.
o The Organization of VWC - a book in 4 main movements
Before getting into a discussion of Kenneth Jay's protocols, it's worth considering what else is in the book. The book is presented as 10 chapters. That may sound like a lot, but some of the chapters are quite succinct, and they fit into what might be described as three related movements:
The initial sections build up why working on VO2max conditioning is an important and effective component in overall strength and conditioning work. An overview of the viking warrior conditioning concept is presented, and followed by an overview of cardiovascular physiology - no mean feat - followed by a discussion of force, finished up with a few thoughts on how the kettlebell - in particular the kettlebell snatch - ties all these attributes together.
Essentially, fast snatching with perfect form enables one to develop two properties of the heart: eccentric hypertrophy - its elasticity to pump lots of blood - and concentric hypertrophy - some thickening of the walls of the heart to handle the pressure of heavy loads for powerful efforts.
Oxygen is critical to our survival. Blood carries oxygen to our muscles; the effort of muscles uses up that oxygen and needs to be replaced. The effectiveness with which fresh blood can be powered through our veins is related to how effectively our heart can pump: how strong the force it can genearte (and sustain) and how much of the blood it can take in, it can actually get out of the heart again. (For more detail, Related discussion on cardio, kb's and energy system integration here)
What these combined actions of pumping blood out of the heart and getting it into the hungry muscles, mean is that the heart can get more oxygen both into and out of the muscles faster and more efficiently, and it can get more blood especially out of the heart with each beat. Better blood flow, and more O2 reaching the muscles combines to mean less fatigue and more power, stamina and, effectively strength.
Two Strengths of the Heart. Usually, endurance athletics like running or swimming or cycling
develop eccentric hypertrophy, while resistance training and sprinting develop more concentric hypertrophy. It's important to develop both. And Kenneth's snatch protocol attests to doing both.
There's only really one other activity beside the kb snatch it seems that has been shown to simulate this simultaneous double effect on the heart, and that's rowing. And if you're Stuart McGill, you're not crazy about rowing because your back is in flexion a great deal of the time. This is not the case with the snatch.
Jay goes into some detail on how the cardiovascular system of the heart and bloodflow works. Some folks may want to skip this part and get to the protocols, and that's fine: it's there for reference. But for those who do want to get at *why* the protocols that follow will enhance those two key components of cardiovascular strength, the explanations are very good. They make a few assumptions - for example the Krebs cycle is mentioned without explanation, and the roles of lactic acid and why we might want to push on that is also left more stated than explained. But there's sufficient information that is well-explained to get a handle on the process, and seek out other sources in an informed way if more info is sought.
+ Second Movement: The VWC protocols
Viking Warrior Conditioning presents 5 protocols for VO2max conditioning. Each are progressive and build upon the previous one.
36:36 The most discussed protocols in the RKC kettlebell scene is the protocol Kenneth Jay first introduced to the RKC II certification a couple years ago. The 36:36. Why 36 secs on/36 seconds off. Kenneth Jay explains this in the book as follows:
And so i did ask Kenneth exactly this. To which he replies that the focus in not on the work to rest interval ratio, but on the max time for VO2max work in a minute:
For backup to the above, Kenneth references the following article in particular:
The other Protocols. Beyond 36:36 there is one preliminary/prepatory protocol before diving into 36:36, and then three other peaking and pushing protocols that focus on both pushing beyong VO2max and on lactic acid tolerance.
Indeed lactic acid is in the title of the three post 36:36 protocols, and its one concept that Viking Warrior Conditioning does not directly explicate. So i asked Kenneth if he could talk about that focus a bit more here. Here's what he said:
Likewise, what about going over VO2max? How can we do something at MORE than 100%? If that more than 100% feels like Spinal Tap's amplifier ("it goes to 11"), then a couple things to remember. First we have more than one energy system we can draw on, each being categorized as aerobic (using oxygen) and anaerobic (not using oxygen). When the aerobic capacity gets tapped out - or we hold our breath for an intense effort - we're drawing on those anaerobic energy levels. I asked KJ if he could describe this beyond 100% V02max capacity, and he came back with the following analogies:
How Long to Do Them All? Kenneth Jay's protocols, informed by recent research on best-tapping of energy production and tolerances for optimal work. If a person has the stamina to move through each protocol in succession, it will take approximately 30 -36weeks - in other words the better part of a year.
Of course, these protocols are the crown jewels of the book, but as a good coach, Kenneth doesn't simply say here's a bunch of nifty protocols; he provides a few contexts in how they can be applied. Thus the next sections of Viking Warrior Conditioning present how to put these strategies to work.
o Third Movement: Thorolf and Friends
The Protocol section closes with three strategies of how VWC might be adapted to co-exist within anyone's current training practice. This also includes KJ's own prefered approach. But the part of the book that is a particular asset is the case study that follows.
Here we see charted out exactly how one "moderately trained" 35 year old male, Throlof, did following the first four of the five Viking Warrior Conditioning protocols. Each protocol is mapped out on a per session /per week basis to see progression of volume.
We see the calculations for percentage over VO2max worked out to go with particular protocols. The only thing we do not see is Thorlof hooked up to a cart to validate that the calculated VO2max percentatges are validated in practice. Given that these calculations however are based on a lot of research that has been tested, and since we can see Thorlof's progress we can be pretty confident there is a strong progressive effect.
Kenneth Jay also stated in our exchanges that yes Thorolf really exists and yes these are his numbers.
Active Rest. Something also keen to note in the case study are the back off weeks in the program. Either Thorolf has great instincts or a great coach, but he kept himself sane by backing off for a bit and coming back stronger than before for a persistent, consistent linear progression of results over time.
Intervals vs other CV conditioning. Kenneth rounds off the Thorolf section with a nice discussion of the benefit of interval training vs. steady state. This chapter has the unfortunate title of "why the fat burning zone is a joke" but aside from that he makes the now well established case that in 2/3's the time of a steady state 75% Max heart Rate workout one is burning significantly more calories, and hence getting at more fat - so getting lean is good. The section also touches on why intervals like these have other benefits than steady state - and that may be the key thing, more than how many calories are burned or not.
What we know from increasing amounts of data is that, at a certain intensity of effort, things start happening at the DNA level of our responses to demands for fuel that have effects not just on our hearts but on our muscels, too. We touched on this a couple of weeks ago in this research review of the 6mins in 2weeks Efforts and its potential applications.
To complete the discussion on the benefits of Viking Warrior Condition, Kenneth concludes with a discussion on Conditioning and on Power, how they relate and how, not surprisingly, VWC helps develop each of the areas discussed. The discussion on general conditioning is particularly strong, discussing fatigue management, its relation to work capacity and the role of oxygen uptake - the latter being a big chunk of what VO2max work is about.
o Fourth Movement: Real People - well, RKC's and a Fighter- using VWC
What comes as a surprise in the book is the chapter that simply presents 3 RKC's of varrying levels writing about their experience with the VWC protocols. 2 of the 3 writers is a woman. That's cool. It's difficult in reading through these experiences not to see how they might be applicable to a range of athletes. To drive the point home, the section concludes with an interview of Mark O Madsen (also an RKC) who is a "world ranked Greco-Roman wrestler." The core take away from this interview is that the kettlebell is one of many tools the athlete uses regularly, with the 15:15 protocol being his main VWC protocol - from which he's getting a lot of mileage. The take home is this is a serious athlete "ranked 2nd in the world" - so if this approach wasn't working for him in a serious way, it would not be in his training.
o Coda
The book finishes with a review of the RKC hardstyle snatch. In an interview with Geoff Neupert, Kenneth Jay reiterated that he takes as a base level for this protocol someone who has gone through Pavel Tsatsouline's Enter the Kettlebell Program Minimum and Rite of Passage protocols for basic level comfort and control in kettlebell work.
Since this is such a snatch heavy program, seeing an RKC trainer to check snatch form is a Good Idea, too.
Kenneth in his Call to Action promises that Viking Warrior Condition will offer a transformative experience of conditioning like no other. After reading the book, you'll know not only how to make that happen but why these protocols will deliver that. And based on the the testimony of the people in the book, there's excellent support to show that the claims are not unwarranted.
A word for Rif. One other voice prefaces the book, Master RKC Mark Reifkind. He has not only written about his experience in the book's forward, but he's chronicled it as well on Rif's blog. His and Tracy Reifkind's progress with these protocols is perhaps kenneth's best testament to their efficacy. Every claim Rif makes in the forward is documented - frequently with video - for all to see.
o Other Athletes: Runners And Rugby Forwards.
Something i've started to investigate with some athletes is how VWC might be interleaved with their running practice to reduce hard miles on their bodies and up their performance. It's early days, but this has promise.
Another place some of us will be looking at in the fall is how VWC can improve the end-of-game stamina of a team's rugby forwards - complementing, not interupting, their pre and in-season training.
o Summary
VIking Warrior Condition is an intense program that promises to deliver persistent, consistent results.
The book may feel thin in the hands at 109 pages, but as such it's also a highly practical, efficient manual that anyone can wrap their heads around in a single sitting, and come back to as necessary when moving up the protocols.
If you're interested in tested practical applications of interval training for cardiovascular fitness, strength and stamina, for excellent conditioning, and would like to use a simple implement to achieve these ends, this is a book worth having, and approach worth practicing.
Let me know how go your results.
Kenneth Jay's Viking Warrior Conditioning, published by Dragon Door, 2008.
Related recommended resources
Enter the Kettlebell
Precision Nutrition
Kettlebells:
In the US: dragondoor kettlebells
In the UK: kettelbell Fever
Related Posts
o Cut to the Chase overview/recommendation:
If you are an athlete who needs stamina, strenght and endurance - whether on the field or in the gym; in team or in solo sports, this is an excellent protocol for maximally efficient cardiovascular conditioning.
A few quick reasons:
- it's efficient, making good use of what we know about interval-based training
- it works the whole body
- it uses one relatively inexpensive piece of equipment that can be used pretty much anywhere one has room to swing a cat
- the book itself has sufficient explanations for someone to understand why they need to do what's prescribed as prescribed, and it provides case studies and real people reports to show how this protocol works for real people.
- It's a complete package.
o What's in this Review
The following review goes over who Viking warrior conditioning is for, how the book is presented, why the protocols presented are effective, how that's demonstrated, and why this book would be a great asset for strength and conditioning coaches, team coaches and athletes across the sports board, from cyclists to power lifters.
Who's this book for? Anyone who needs strength, stamina and power. Despite the fact that this book focuses on the use of the kettlebell snatch for its protocols, this book is not just for people devoted to the kettlebell. The kettlebell, and in this case, the single move the kettlebell snatch, just happens to be terrific for cardiovascular (CV) conditioning.
If you're an athlete who needs strength to move, stamina to keep moving and power to move something as effectively as possible, VO2max conditioning is a good idea.
Consider an athlete on a team where the team can go and go with skill and strength - right until about the last crucial ten minutes of the match. It's those last ten minutes that may just make the difference between having the concentration and energy to win against the other team.
Remember Andy Rodick at the end of this year's Wimbleton? Neck and neck with Federer till the last few minutes. Was it talent and skill or more energy reserves at that point that put Federer ahead of such a tight battle?
And what about just having the energy to get through a long day, whether that day is moving furniture or working out details of a troublesome project. Enhancing our capacity to move oxygen through our blood stream, improving its efficiency at doing so, and being able to work harder, longer for effectively less effort are all great things. These effects are great in an of themselves, plus they have super side benefits for health, longevity and well being.
o Caveat Before Starting
The only thing VWC assumes is that you already have some level of conditioning. That is, this is not a protocol for someone who is going from complete sedentary level to VO2 conditioning. Why?
Snatch Speed. The protocols in this book demand both skill with the kettlebell snatch in order to maintain perfect form with the KB when moving it quickly and repeatedly in both the down strokes (overspeed eccentrics) and the up strokes (explosive force).
Interval Effort. As Lyle McDonald summarized in an overview of the role of intervals in fitness, they're best suited to someone who has some base level fitness already. If just starting a fitness program, get used to moving first. And if you'd like to start moving with a kettlebell, excellent idea. I'd strongly encourage you to consider Enter the Kettlebell (reviewed here) for fitness, and Precision Nutrition (reviewed here) as a great habit building approach to nutrition.
o The Organization of VWC - a book in 4 main movements
Before getting into a discussion of Kenneth Jay's protocols, it's worth considering what else is in the book. The book is presented as 10 chapters. That may sound like a lot, but some of the chapters are quite succinct, and they fit into what might be described as three related movements:
- First movement: the motivation for and explanation of how VO2max conditioning Works
- Second movement: the protocols
- Third movement: the case study: the protocols applied
- fourth movement: testimonials of experiences with the VO2max protocol
The initial sections build up why working on VO2max conditioning is an important and effective component in overall strength and conditioning work. An overview of the viking warrior conditioning concept is presented, and followed by an overview of cardiovascular physiology - no mean feat - followed by a discussion of force, finished up with a few thoughts on how the kettlebell - in particular the kettlebell snatch - ties all these attributes together.
Essentially, fast snatching with perfect form enables one to develop two properties of the heart: eccentric hypertrophy - its elasticity to pump lots of blood - and concentric hypertrophy - some thickening of the walls of the heart to handle the pressure of heavy loads for powerful efforts.
Oxygen is critical to our survival. Blood carries oxygen to our muscles; the effort of muscles uses up that oxygen and needs to be replaced. The effectiveness with which fresh blood can be powered through our veins is related to how effectively our heart can pump: how strong the force it can genearte (and sustain) and how much of the blood it can take in, it can actually get out of the heart again. (For more detail, Related discussion on cardio, kb's and energy system integration here)
What these combined actions of pumping blood out of the heart and getting it into the hungry muscles, mean is that the heart can get more oxygen both into and out of the muscles faster and more efficiently, and it can get more blood especially out of the heart with each beat. Better blood flow, and more O2 reaching the muscles combines to mean less fatigue and more power, stamina and, effectively strength.
Two Strengths of the Heart. Usually, endurance athletics like running or swimming or cycling
develop eccentric hypertrophy, while resistance training and sprinting develop more concentric hypertrophy. It's important to develop both. And Kenneth's snatch protocol attests to doing both.There's only really one other activity beside the kb snatch it seems that has been shown to simulate this simultaneous double effect on the heart, and that's rowing. And if you're Stuart McGill, you're not crazy about rowing because your back is in flexion a great deal of the time. This is not the case with the snatch.
Jay goes into some detail on how the cardiovascular system of the heart and bloodflow works. Some folks may want to skip this part and get to the protocols, and that's fine: it's there for reference. But for those who do want to get at *why* the protocols that follow will enhance those two key components of cardiovascular strength, the explanations are very good. They make a few assumptions - for example the Krebs cycle is mentioned without explanation, and the roles of lactic acid and why we might want to push on that is also left more stated than explained. But there's sufficient information that is well-explained to get a handle on the process, and seek out other sources in an informed way if more info is sought.
+ Second Movement: The VWC protocols
Viking Warrior Conditioning presents 5 protocols for VO2max conditioning. Each are progressive and build upon the previous one.
36:36 The most discussed protocols in the RKC kettlebell scene is the protocol Kenneth Jay first introduced to the RKC II certification a couple years ago. The 36:36. Why 36 secs on/36 seconds off. Kenneth Jay explains this in the book as follows:
Thrity-Six seconds is 60% of 1 minute. Research has shown that doing intervals at 60% of the time spent at VO2max is far superior to 50% (the suggestion of 30-second sets) or 70% or even 40% and 80% when doing high volumne work (35 sets)One may ask, how is 36:36 representative of 60%, when the interval is 1:1. Isn't that 50% of 1min 12 secs total for the set? Shouldn't it be 36:24?
And so i did ask Kenneth exactly this. To which he replies that the focus in not on the work to rest interval ratio, but on the max time for VO2max work in a minute:
First thing is to remember the 60% does NOT refer to W:R ratio or the protocol itself. the 60% is taken from the time spent at MVO2 during the cadence test. in order to elicit a MVO2 response several factors has to be present among others a gradual build up- henc the 5 min test. the 5th minute is all out which should be VO2max and in order to take the slow component of the VO2 kinetics into account a minimum of 1 minute has to be kept (this is necessary because the test estimates as opposed to direct meassurement) The 36:36 sec. protocol is therefore derived by saying that if we are working at VO2max levels for 1 min during the test and research show (like esfarjani & Laursen, 2007 ao) that interval duration should be 60% of the time you are able to keep your VO2max then I arrive at 36 sec. IF I had chosen to have the cadence test last 5 1/2 in. with the last 1 1/ min all out then the work interval duration would have to be 60% of 90 sec (54 sec.) this would have been just as accurate if it had not been for a serious drop in snatch performance after 1 min all out- this is based on no published observations during my study but if the protocol was meant for runnig it could have easily been done. prolonging the final all out time with snatches it a differnet animal and most people would get a worng result.Cool.
At this point the work duriation has been established (60% of 1 min of the cadence test) and since that equals 36 sec I decided the protocol should have a 1:1 W:R ratio. When the interval work duration is less that 1 min. this is advisable. also based on research (michalisk& Bangsbo) when the intervals gets longer- the rest also has to increase.
So in short. remember that the 60% is derived from the cadence test and nothing else!
For backup to the above, Kenneth references the following article in particular:
It's also cool to note that the above study is based on "moderately" trained runners - so not super jocks. And since this is the level - moderately trained - of where most folks will begin with the VO2max protocol, then there's good reason to use the optimal protocol for this approach in the vo2max effort.
J Sci Med Sport. 2007 Feb;10(1):27-35. Epub 2006 Jul 28.Click here to read Links
Manipulating high-intensity interval training: effects on VO2max, the lactate threshold and 3000 m running performance in moderately trained males.
Esfarjani F, Laursen PB.
School of Science and Physical Education, Esfahan University, Esfahan, Iran.
The aim of this study was to compare the effects of two high-intensity interval training (HIT) programmes on maximal oxygen uptake (.VO(2max)), the lactate threshold (LT) and 3000 m running performance in moderately trained male runners. .VO(2max), the running speed associated with .VO(2max) (V.VO(2max)), the time for which V.VO(2max) can be maintained (T(max)), the running speed at LT (v(LT)) and 3000 m running time (3000 mTT) were determined before and following three different training programmes performed for 10 weeks. Following the pre-test, 17 moderately trained male runners (V O(2max)=51.6+/-2.7ml kg(-1)min(-1)) were divided into training groups based on their 3000 mTT (Group 1, G(1), N=6, 8 x 60% of T(max) at V.VO(2max), 1:1 work:recovery ratio [that should look familiar -mc]; Group 2, G(2), N=6, 12 x 30s at 130% V.VO(2max), 4.5 min recovery; control group, G(CON), N=5, 60 min at 75% V.VO(2max)). G(1) and G(2) performed two HIT sessions and two 60 min recovery run sessions (75% V.VO(2max)) each week. Control subjects performed four 60 min recovery run sessions (75% V.VO(2max)) each week. In G(1), significant improvements (p<0 .05=".05" p="0.07)." style="color: #663300;">HIT programmes in moderately trained runners, but that changes in performance and physiological variables may be more profound using prolonged HIT at intensities of V.VO(2max) with interval durations of 60% T(max).
The other Protocols. Beyond 36:36 there is one preliminary/prepatory protocol before diving into 36:36, and then three other peaking and pushing protocols that focus on both pushing beyong VO2max and on lactic acid tolerance.
Indeed lactic acid is in the title of the three post 36:36 protocols, and its one concept that Viking Warrior Conditioning does not directly explicate. So i asked Kenneth if he could talk about that focus a bit more here. Here's what he said:
Basically production and tolerence of lactic acid is a great indicator of how well your anaerobic system is conditioned. A high production rate means that ATP is synthesized very quickly and a high tolerence rate means that just that- you can continue to work in a very acidic environment.(For a quick overview of ATP, what it is, and why it's important, take a look at the middle-ish of this post on fat-as-fuel.)
Likewise, what about going over VO2max? How can we do something at MORE than 100%? If that more than 100% feels like Spinal Tap's amplifier ("it goes to 11"), then a couple things to remember. First we have more than one energy system we can draw on, each being categorized as aerobic (using oxygen) and anaerobic (not using oxygen). When the aerobic capacity gets tapped out - or we hold our breath for an intense effort - we're drawing on those anaerobic energy levels. I asked KJ if he could describe this beyond 100% V02max capacity, and he came back with the following analogies:
[Going over 100% is possible becuase] the body basically has two ways to make energy: those are aerobic and anaerobic. Aerobic means "with oxygen" and anaerobic means "without oxygen" VO2 is the most acurate way to express how much the AEROBIC system is taxed.Going over 100% VO2max also pushed lactic acid production at a faster rate than a lower rate. So the two effects are strongly related.
When we reach 100% MVO2 we cant get more out of the aerobic system BUT we still have the ANAEROBIC system to push harder. Going above 100%MVO2 just means that you are doing something faster than what your aerobic system can handle alone.
Think about it is way: Ever seen the movie "the Fast and the Furious"? The guys in the film fine tune their cars to the limit. putting in all the right parts- the lightest, most durable stuff, the best turbos etc. that is the equivalent of the VO2max. The cars probably max out at a top speed of 160-170 mph (which we will call 100%) or something like that. BUT then they have the NOS. that injection will make the cars go close to 200 mph or +100%. The NOS = the anaerobic system. Of course that is a very simplified way of looking at it but it gets the idea through. (hopefully)
How Long to Do Them All? Kenneth Jay's protocols, informed by recent research on best-tapping of energy production and tolerances for optimal work. If a person has the stamina to move through each protocol in succession, it will take approximately 30 -36weeks - in other words the better part of a year.
Of course, these protocols are the crown jewels of the book, but as a good coach, Kenneth doesn't simply say here's a bunch of nifty protocols; he provides a few contexts in how they can be applied. Thus the next sections of Viking Warrior Conditioning present how to put these strategies to work.
o Third Movement: Thorolf and Friends
The Protocol section closes with three strategies of how VWC might be adapted to co-exist within anyone's current training practice. This also includes KJ's own prefered approach. But the part of the book that is a particular asset is the case study that follows.
Here we see charted out exactly how one "moderately trained" 35 year old male, Throlof, did following the first four of the five Viking Warrior Conditioning protocols. Each protocol is mapped out on a per session /per week basis to see progression of volume.
We see the calculations for percentage over VO2max worked out to go with particular protocols. The only thing we do not see is Thorlof hooked up to a cart to validate that the calculated VO2max percentatges are validated in practice. Given that these calculations however are based on a lot of research that has been tested, and since we can see Thorlof's progress we can be pretty confident there is a strong progressive effect.
Kenneth Jay also stated in our exchanges that yes Thorolf really exists and yes these are his numbers.
Active Rest. Something also keen to note in the case study are the back off weeks in the program. Either Thorolf has great instincts or a great coach, but he kept himself sane by backing off for a bit and coming back stronger than before for a persistent, consistent linear progression of results over time.
Intervals vs other CV conditioning. Kenneth rounds off the Thorolf section with a nice discussion of the benefit of interval training vs. steady state. This chapter has the unfortunate title of "why the fat burning zone is a joke" but aside from that he makes the now well established case that in 2/3's the time of a steady state 75% Max heart Rate workout one is burning significantly more calories, and hence getting at more fat - so getting lean is good. The section also touches on why intervals like these have other benefits than steady state - and that may be the key thing, more than how many calories are burned or not.
What we know from increasing amounts of data is that, at a certain intensity of effort, things start happening at the DNA level of our responses to demands for fuel that have effects not just on our hearts but on our muscels, too. We touched on this a couple of weeks ago in this research review of the 6mins in 2weeks Efforts and its potential applications.
To complete the discussion on the benefits of Viking Warrior Condition, Kenneth concludes with a discussion on Conditioning and on Power, how they relate and how, not surprisingly, VWC helps develop each of the areas discussed. The discussion on general conditioning is particularly strong, discussing fatigue management, its relation to work capacity and the role of oxygen uptake - the latter being a big chunk of what VO2max work is about.
o Fourth Movement: Real People - well, RKC's and a Fighter- using VWC
What comes as a surprise in the book is the chapter that simply presents 3 RKC's of varrying levels writing about their experience with the VWC protocols. 2 of the 3 writers is a woman. That's cool. It's difficult in reading through these experiences not to see how they might be applicable to a range of athletes. To drive the point home, the section concludes with an interview of Mark O Madsen (also an RKC) who is a "world ranked Greco-Roman wrestler." The core take away from this interview is that the kettlebell is one of many tools the athlete uses regularly, with the 15:15 protocol being his main VWC protocol - from which he's getting a lot of mileage. The take home is this is a serious athlete "ranked 2nd in the world" - so if this approach wasn't working for him in a serious way, it would not be in his training.
o Coda
The book finishes with a review of the RKC hardstyle snatch. In an interview with Geoff Neupert, Kenneth Jay reiterated that he takes as a base level for this protocol someone who has gone through Pavel Tsatsouline's Enter the Kettlebell Program Minimum and Rite of Passage protocols for basic level comfort and control in kettlebell work.
Since this is such a snatch heavy program, seeing an RKC trainer to check snatch form is a Good Idea, too.
Kenneth in his Call to Action promises that Viking Warrior Condition will offer a transformative experience of conditioning like no other. After reading the book, you'll know not only how to make that happen but why these protocols will deliver that. And based on the the testimony of the people in the book, there's excellent support to show that the claims are not unwarranted.A word for Rif. One other voice prefaces the book, Master RKC Mark Reifkind. He has not only written about his experience in the book's forward, but he's chronicled it as well on Rif's blog. His and Tracy Reifkind's progress with these protocols is perhaps kenneth's best testament to their efficacy. Every claim Rif makes in the forward is documented - frequently with video - for all to see.
o Other Athletes: Runners And Rugby Forwards.
Something i've started to investigate with some athletes is how VWC might be interleaved with their running practice to reduce hard miles on their bodies and up their performance. It's early days, but this has promise.
Another place some of us will be looking at in the fall is how VWC can improve the end-of-game stamina of a team's rugby forwards - complementing, not interupting, their pre and in-season training.
o Summary
VIking Warrior Condition is an intense program that promises to deliver persistent, consistent results.
The book may feel thin in the hands at 109 pages, but as such it's also a highly practical, efficient manual that anyone can wrap their heads around in a single sitting, and come back to as necessary when moving up the protocols.
If you're interested in tested practical applications of interval training for cardiovascular fitness, strength and stamina, for excellent conditioning, and would like to use a simple implement to achieve these ends, this is a book worth having, and approach worth practicing.
Let me know how go your results.
Kenneth Jay's Viking Warrior Conditioning, published by Dragon Door, 2008.
Related recommended resources
Enter the Kettlebell
Precision Nutrition
Kettlebells:
In the US: dragondoor kettlebells
In the UK: kettelbell Fever
Related Posts
- Thinking about Cardio with Kettlebells: various approaches - physiology
- A Cardio KB method: running the bells
- Cardio and strength training: does it interfer? how 'bout no.
Friday, July 31, 2009
Fitness in 6 minutes of effort *a week* or Less? What does that mean? (Part I)
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If in a training session, we can hurl ourselves into short blasts of all out 
effort (without hurling), we may just be able to get ourselves fit in 6 (to 9) mins of effort a week. Fit, to the same level and kind of strength capacity if we were doing 2-3 hours traditional endurance work/week. While this sounds cool, what does 6 mins of fitness give us, especially, relative to any body comp and strength desires? This is part one of a two part article. Part I (what you're reading now): research review. Part II: plain language take aways form the research.
Background:
Last year when talking about the difference between cradio and vo2max training and the benefits thereof, especially for enhancing mitochondrial density, the stuff that makes fat burn in the cells, i mentioned this pretty new research out of (happiness and joy) Canada:
Here's the abstract
Now some folks may say ya ya, we know intervals are more efficient at burning calories than lower intensity steady state: more effort you burn more. Duh. But calories burned is not the big exciting part of this story. It's the mitochondria and the carbohydrates that are kinda amazing.
Getting Endurance Effects from Resistance Like Training?
One of the big reasons people blend HIIT with steady state lower intensity (65%) cardio training is both for (1) elasticity of heart muscle health that say resistance training alone doesn't give (pick up Kenneth Jay's Viking Warrior
Conditioning for more on this) and/or (2) creating cells that are better fat burners. Aerobic workouts both privilege fat as the fuel of choice AND they enhance the qualities of cells (mitochondria) that get fat oxidized (burned) for fuel.
Folks in the house who use kettlebells may be getting all smug here by saying that doing lots of swings with a mid sized bell does the endurance work, while all their presses, pulls and snatches takes care of the power/resistance stuff. Yes, it's a magic ball!
The thing is, again, the powerful finding of this work, is that it shows that that all important, highly sought-after mitochondria proliferation is occurring in super intense work in a way comparable to that 65% endurance work. That's not what we're doing in a ten minute swing set with a kb. And that's just not what would be predicted in the normal model of our metabolism. And here's why i love good science: the authors admit as much by saying they don't know why they are getting these results, citing that traditional and current understanding of strength/endurance
bodies work, these results shouldn't happen (and this is the second time the authors have repeated these results - in fact that they're getting similar effects in this 6 week trial as they did in their 2 week trial is provocative in itself).
In other words the 02 deficit may be SO HIGH after this effort your body may up-regulate O2 consumption afterwards, which impacts the aerobic system. So it might be the rest intervals during and post the effort where the aerobic ET-like adaptation is occurring.
What does that mean? Time to update the model - and consider all the variables that may play a role, from the brevity of the interval (longer may be counter-productive) to an understanding of the recovery period processes. The authors speculate that part of the answer is that the intensity of effort turns on a particular gene expression PGC-1α due to a whole bunch of upregulated muscular related fuel events that we'll skip here but that are triggered by this kind of intensity burst.
Indeed, in a study by Gibala that came out just this past June, 2009, the author came back to some of these questions. And that transcripter seems to be a winner. The abstract reads, in part,
Carbohydrate AND Phosphocreatine Sparing? What's new?
But let's come back to the other big finding of this study - less sensational, but good to confirm:
The usual model is that, going anaerobic - which an all out sprint effort does - means that we burn fuel from the phosphagen system in the initial blast and then we hit carbs. Phosphagen gives us a small burn of 10-30secs. After that, carbs kick in for about another three minutes of burn. Important to note is that we mean these are the primary fuel systems - oxygen (and so some fat burning) is always working too or we'd croak.
Part of the reason folks do vo2max training is to be carbohydrate sparing - we want to make the body able to use oxygen for greater levels of work, so that it turns to carbs at only higher and higher demands for fuel. Why would we want to do this? Two reasons: we have way more fat available for fuel than we do carbs, and fat gives way more energy bang for the buck than do carbs. In other words we can go longer on a gram of fat than we can a gram of carbs.
If you're doing weight loss work, naturally getting fat burning optimized is a good thing. This effect is again why folks traditionally do lower intensity cardio: it privileges fat burning for fuel.
Likewise in the strength training space, the reason we supplement with creatine is to help keep the phosphagen system topped up - so we can get a few more reps in at that higher phosphogen level fuel system going.
Now here's a protocol that says it's both beneficial for phosphocreatine and carbohydrate sparing. THat's not surprising for interval training to claim. That's part of the reason, as said, we do that with resistance work to develop power, and with vo2max work for higher endurance. The kicker here is the achievement of same with very low volume.
Here's how they tested it: they tested their SIT and ET groups prior to the study commencing with a 65% of pre-training v02peak effort of cycling for an hour. They did the same thing after 6 weeks. The researchers found again comparable changes in fuel usage in both groups so there were both carb and phosocreatine benefits from super low volume training.
The results may not be cost free, but the cost may be minimal or negligible. The amount of ATP at rest in the SIT group was lower; it didn't change in the ET group. This means that amount of available material to be used for muscle contraction was lower in the SIT group. The researchers aren't sure why this was the case: it takes awhile to reamp ATP and it may just be from residual effects of the last excercise bout before the samples were taken, or it may be an effect of the chronic excercise protocol. Not sure. Dunno. Watch that space.
So finally we can dump aerobics/cardio training?
If we get all the tasty goodness of aerobic trad endurance training from these brief moments of vomitus activity, can we skip cardio entirely? Answer: we don't know (did i say i love science yet?)
Is Even Less Even More?
Likewise, the current study measured 30s intervals for 6 mins of work. In a recent interview, Gibala said an upcoming study for fall 2009 will look at how low those intervals can go for benefit. Could a single two or three minute bout be as effective as those six minutes? Dunno!
A few Points on Gear.
I sense the kettlebeller within immediately wanting to give this protocol a go with kb snatching or some such. An important note, then.
The study was carried out on a stationary bike. That's the typical device for a wingate test. It's safe. Swimming is another safe place (no pounding for all those repeats) where one can get one's heart and system up to that intensity - though swimming is harder to gate. Easier on a bike.
The wingate test is a precisely set load on the individual: from .075kg/kg of athlete to 1.3kg/kg of athlete. It would be interesting to think about how to translate this kind of resistance to a *safe* kettlebell routine.
Of course the disadvantage of thinking about such a rep set might be that one's form goes to hell, and that's totally wrong, engraining poor rep quality is rather problematic neurologically not always to be going for a perfect rep.
A few questions about fitness and body comp
Most of us workout because we want to be strong and look half decent half dressed. What this study did not measure is what these results mean for the technical body comp (bf%, say) and the visual body comp (dress size, look in the mirror, buff-ness).
For instance, in a study from 2007, it seemed that for folks to maintain their desired body look and feel, they needed to workout for 5 hours a week, mixing up cardio, intervals and strength work.
Now while this study protocol hasn't been put forward as a training program that's sorta where the NYT interview, cited above, was coming from, and it's certaininly an interest of the folks doing the studies.
But the question might be, given body comp and strength goals, what would this 6 mins a week fitness regine get those of us who are, well, already fit enough to contemplate it?
Part II: What does this all really mean for our actual real workouts? 6 plain language take aways, next.
Burgomaster, K., Howarth, K., Phillips, S., Rakobowchuk, M., MacDonald, M., McGee, S., & Gibala, M. (2007). Similar metabolic adaptations during exercise after low volume sprint interval and traditional endurance training in humans The Journal of Physiology, 586 (1), 151-160 DOI: 10.1113/jphysiol.2007.142109 Tweet Follow @begin2dig
If in a training session, we can hurl ourselves into short blasts of all out effort (without hurling), we may just be able to get ourselves fit in 6 (to 9) mins of effort a week. Fit, to the same level and kind of strength capacity if we were doing 2-3 hours traditional endurance work/week. While this sounds cool, what does 6 mins of fitness give us, especially, relative to any body comp and strength desires? This is part one of a two part article. Part I (what you're reading now): research review. Part II: plain language take aways form the research.Background:
Last year when talking about the difference between cradio and vo2max training and the benefits thereof, especially for enhancing mitochondrial density, the stuff that makes fat burn in the cells, i mentioned this pretty new research out of (happiness and joy) Canada:
Here's the abstract
Low-volume 'sprint' interval training (SIT) stimulates rapid improvements in muscle oxidative capacity that are comparable to levels reached following traditional endurance training (ET) but no study has examined metabolic adaptations during exercise after these different training strategies. We hypothesized that SIT and ET would induce similar adaptations in markers of skeletal muscle carbohydrate (CHO) and lipid metabolism and metabolic control during exercise despite large differences in training volume and time commitment. Active but untrained subjects (23 ± 1 years) performed a constant-load cycling challenge (1 h at 65% of peak oxygen uptakeOn the face of it, the big take away from the study, as the authors say themselves in the Discussion part of the article: the effect on carbs in the muscle and fat metabolism were comparable to the endurance training protocols, and here's the kickerbefore and after 6 weeks of either SIT or ET (n= 5 men and 5 women per group). SIT consisted of four to six repeats of a 30 s 'all out' Wingate Test (mean power output ∼500 W) with 4.5 min recovery between repeats, 3 days per week. ET consisted of 40–60 min of continuous cycling at a workload that elicited ∼65%
(mean power output ∼150 W) per day, 5 days per week. Weekly time commitment (∼1.5 versus∼4.5 h) and total training volume (∼225 versus∼2250 kJ week
−1 ) were substantially lower in SIT versus ET. Despite these differences, both protocols induced similar increases
Similar metabolic adaptations during exercise after low volume sprint interval and traditional endurance training in humans
Pages: 151–160
Kirsten A. Burgomaster, Krista R. Howarth, Stuart M. Phillips, Mark Rakobowchuk, Maureen J. MacDonald, Sean L. McGee, Martin J. Gibala
Published Online: Jan 2 2008 12:00AM
DOI: 10.1113/jphysiol.2007.142109
quick note on terms: vo2peak is highest VO2 elicited in test to exhaustion; the more familiar vo2max which is the plateau hit for V02 when adding progressive load. So you can readily hit vo2max before exhaustion.
despite a much lower training volume and time commitment. By design, weekly training volume was ∼90% lower in the SIT group (∼225 versus∼2250 kJ week90% lower! in terms of time and effort. So, low volume (few repeats) of maximal effort with good recovery has the same effect as high volume mid intenstity.−1 for ET) and necessitated a training time commitment that was only ∼one-third of that of the ET group (∼1.5 versus 4.5 h [over 6 weeks -mc]).
Now some folks may say ya ya, we know intervals are more efficient at burning calories than lower intensity steady state: more effort you burn more. Duh. But calories burned is not the big exciting part of this story. It's the mitochondria and the carbohydrates that are kinda amazing.
Getting Endurance Effects from Resistance Like Training?
One of the big reasons people blend HIIT with steady state lower intensity (65%) cardio training is both for (1) elasticity of heart muscle health that say resistance training alone doesn't give (pick up Kenneth Jay's Viking Warrior
Conditioning for more on this) and/or (2) creating cells that are better fat burners. Aerobic workouts both privilege fat as the fuel of choice AND they enhance the qualities of cells (mitochondria) that get fat oxidized (burned) for fuel.Folks in the house who use kettlebells may be getting all smug here by saying that doing lots of swings with a mid sized bell does the endurance work, while all their presses, pulls and snatches takes care of the power/resistance stuff. Yes, it's a magic ball!
The thing is, again, the powerful finding of this work, is that it shows that that all important, highly sought-after mitochondria proliferation is occurring in super intense work in a way comparable to that 65% endurance work. That's not what we're doing in a ten minute swing set with a kb. And that's just not what would be predicted in the normal model of our metabolism. And here's why i love good science: the authors admit as much by saying they don't know why they are getting these results, citing that traditional and current understanding of strength/endurance
In other words (i love good science, did i say that?) given what we've understood about how our
While the present study demonstrates the potency of SIT [sprint interval training -mc] to elicit changes in muscle oxidative capacity and selected metabolic adjustments during exercise that resemble ET [endurance training -mc], the underlying mechanisms are unclear. From a cell signalling perspective, exercise is typically classified as either 'strength' or 'endurance', with short-duration, high-intensity work usually associated with increased skeletal muscle mass, and prolonged, low- to moderate-intensity work associated with increased mitochondrial mass and oxidative enzyme activity (Baar, 2006).
bodies work, these results shouldn't happen (and this is the second time the authors have repeated these results - in fact that they're getting similar effects in this 6 week trial as they did in their 2 week trial is provocative in itself).In other words the 02 deficit may be SO HIGH after this effort your body may up-regulate O2 consumption afterwards, which impacts the aerobic system. So it might be the rest intervals during and post the effort where the aerobic ET-like adaptation is occurring.
What does that mean? Time to update the model - and consider all the variables that may play a role, from the brevity of the interval (longer may be counter-productive) to an understanding of the recovery period processes. The authors speculate that part of the answer is that the intensity of effort turns on a particular gene expression PGC-1α due to a whole bunch of upregulated muscular related fuel events that we'll skip here but that are triggered by this kind of intensity burst.
Indeed, in a study by Gibala that came out just this past June, 2009, the author came back to some of these questions. And that transcripter seems to be a winner. The abstract reads, in part,
A key controller of oxidative enzyme expression in skeletal muscle is peroxisome proliferator-activated receptor gamma coactivator 1alpha (PGC-1alpha), a transcriptional coactivator that serves to coordinate mitochondrial biogenesis...Signaling through AMP-activated protein kinase and p38 mitogen-activated protein kinase to PGC-1alpha may therefore explain, in part, the metabolic remodeling induced by HIT, including mitochondrial biogenesis and an increased capacity for glucose and fatty acid oxidation.The conclusion comes away saying that this KIND (and potentially duration) of interval has magical properties that blend endurance benefits for mitochondria building while being what looks like resistance training:
High-intensity interval exercise represents a unique and understudied model for examining the molecular regulation of skeletal muscle remodeling. Like strength or resistance training, interval exercise is characterized by brief intermit- tent bouts of relatively intense muscle contraction. However, interval exercise training induces phenotypic changes that resemble those elicited after traditional endurance training. Preliminary evidence suggests that signaling through AMPK and p38 MAPK to PGC-1a may explain, in part, the meta- bolic adaptations induced by HIT, including mitochondrial biogenesis and an increased capacity for glucose and fatty acid oxidation.In other words, turning on PGC-1a is a big deal to generating this remodeling. And we know from the other studies - or at least strongly suspect - that it's hitting high intensity for these short blasts that does the turning on.
Carbohydrate AND Phosphocreatine Sparing? What's new?
But let's come back to the other big finding of this study - less sensational, but good to confirm:
The usual model is that, going anaerobic - which an all out sprint effort does - means that we burn fuel from the phosphagen system in the initial blast and then we hit carbs. Phosphagen gives us a small burn of 10-30secs. After that, carbs kick in for about another three minutes of burn. Important to note is that we mean these are the primary fuel systems - oxygen (and so some fat burning) is always working too or we'd croak.
Part of the reason folks do vo2max training is to be carbohydrate sparing - we want to make the body able to use oxygen for greater levels of work, so that it turns to carbs at only higher and higher demands for fuel. Why would we want to do this? Two reasons: we have way more fat available for fuel than we do carbs, and fat gives way more energy bang for the buck than do carbs. In other words we can go longer on a gram of fat than we can a gram of carbs.
If you're doing weight loss work, naturally getting fat burning optimized is a good thing. This effect is again why folks traditionally do lower intensity cardio: it privileges fat burning for fuel.
Likewise in the strength training space, the reason we supplement with creatine is to help keep the phosphagen system topped up - so we can get a few more reps in at that higher phosphogen level fuel system going.Now here's a protocol that says it's both beneficial for phosphocreatine and carbohydrate sparing. THat's not surprising for interval training to claim. That's part of the reason, as said, we do that with resistance work to develop power, and with vo2max work for higher endurance. The kicker here is the achievement of same with very low volume.
Here's how they tested it: they tested their SIT and ET groups prior to the study commencing with a 65% of pre-training v02peak effort of cycling for an hour. They did the same thing after 6 weeks. The researchers found again comparable changes in fuel usage in both groups so there were both carb and phosocreatine benefits from super low volume training.
The results may not be cost free, but the cost may be minimal or negligible. The amount of ATP at rest in the SIT group was lower; it didn't change in the ET group. This means that amount of available material to be used for muscle contraction was lower in the SIT group. The researchers aren't sure why this was the case: it takes awhile to reamp ATP and it may just be from residual effects of the last excercise bout before the samples were taken, or it may be an effect of the chronic excercise protocol. Not sure. Dunno. Watch that space.
So finally we can dump aerobics/cardio training?
If we get all the tasty goodness of aerobic trad endurance training from these brief moments of vomitus activity, can we skip cardio entirely? Answer: we don't know (did i say i love science yet?)
It is also important to stress that the relatively limited array of metabolic measurements performed in the present study may not be representative of other physiological adaptations normally associated with ET. For example, SIT may differ from ET with respect to changes induced in the cardiovascular and respiratory systems, metabolic control in other organs (e.g. liver or adipose tissue) and protection from various factors associated with chronic inactivity (e.g. insulin resistance or lipid dysregulation).Indeed, with respect to the all important insulin, and the goal of building insulin sensitivity, in another June 09 publication, Hawley and Gibala look at insulin intensity and exercise intensity and ask "how low can you go?" The authors wanted to get as close as current research findings, when synthesized, might suggest, how *intense* does exercise need to be to have a beneficial effect on insulin sensitivity. Conclusions so far?
It remains to be determined whether high-intensity, low-volume interval training protocols can confer all of the health-related benefits associated with less intense, more prolonged traditional endurance training programmes. [Based on the review of literature to date, however -mc] it seems prudent to recommend that, for patients with insulin resistance or type 2 diabetes, the minimal dose of physical activity needed to maintain or improve health is equivalent to ~4,000 kJ/week of low- to moderate-intensity exercise. However, for patients who only show modest improvements in clinical and metabolic outcomes at this level of activity-induced energy expenditure, an increase in the intensity of exercise may be considered because of the potential additional benefits in both metabolic control and cardiorespiratory fitness.In other words going all out with sprint intervals is not for everyone or all conditions.
Is Even Less Even More?
Likewise, the current study measured 30s intervals for 6 mins of work. In a recent interview, Gibala said an upcoming study for fall 2009 will look at how low those intervals can go for benefit. Could a single two or three minute bout be as effective as those six minutes? Dunno!
A few Points on Gear.
I sense the kettlebeller within immediately wanting to give this protocol a go with kb snatching or some such. An important note, then.
The study was carried out on a stationary bike. That's the typical device for a wingate test. It's safe. Swimming is another safe place (no pounding for all those repeats) where one can get one's heart and system up to that intensity - though swimming is harder to gate. Easier on a bike.
The wingate test is a precisely set load on the individual: from .075kg/kg of athlete to 1.3kg/kg of athlete. It would be interesting to think about how to translate this kind of resistance to a *safe* kettlebell routine.Of course the disadvantage of thinking about such a rep set might be that one's form goes to hell, and that's totally wrong, engraining poor rep quality is rather problematic neurologically not always to be going for a perfect rep.
A few questions about fitness and body comp
Most of us workout because we want to be strong and look half decent half dressed. What this study did not measure is what these results mean for the technical body comp (bf%, say) and the visual body comp (dress size, look in the mirror, buff-ness).
For instance, in a study from 2007, it seemed that for folks to maintain their desired body look and feel, they needed to workout for 5 hours a week, mixing up cardio, intervals and strength work.
Now while this study protocol hasn't been put forward as a training program that's sorta where the NYT interview, cited above, was coming from, and it's certaininly an interest of the folks doing the studies.But the question might be, given body comp and strength goals, what would this 6 mins a week fitness regine get those of us who are, well, already fit enough to contemplate it?
Part II: What does this all really mean for our actual real workouts? 6 plain language take aways, next.
Burgomaster, K., Howarth, K., Phillips, S., Rakobowchuk, M., MacDonald, M., McGee, S., & Gibala, M. (2007). Similar metabolic adaptations during exercise after low volume sprint interval and traditional endurance training in humans The Journal of Physiology, 586 (1), 151-160 DOI: 10.1113/jphysiol.2007.142109 Tweet Follow @begin2dig
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