Showing posts with label balance. Show all posts
Showing posts with label balance. Show all posts
Thursday, August 12, 2010
The Eyes Have It - sometimes: using eye position to enhance strength
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I was fascinated by Geoff Neupert's article in the latest Power by Pavel Newsletter (issue 209, 08/09/10) about his experience using eye position in the press. Geoff is the author of Kettlebell Muscle. Absolutely awesome to see eye position highlighted in relation to how that action can support movement practice. That support is rather dependent on where and how in a compound move it's being used, and also what else may be happening in our somato-sensory systems. So let's look at eye position and postural reflexes and how they support muscle action a little more.
Geoff writes:
Geoff reports that this didn't work for him. When we understand the roll of vision in position, that result is not surprising, so we'll come onto why. He then proposes a revised move with a different head, jaw and eye position: the neck back a bit, chin up a bit and eyes slightly up.
Geoff says of this approach:
Test Early; Test Often The key thing to me in this article is that Geoff did "test" his new approach: did it improve his press? he says so an i believe him. Yet while he proposes a new technique for his press, and has some interesting theory to support it, whether or not that approach will be universally successful may be as likely as eyes down through the lift was successful for Geoff. May be. Dunno, maybe.
The take away from this story, at least for me, is less about a new technique that will work for everyone and more about: test it, because what works for you mayn't work for me, or for you later today, no matter how well we hypothesize why something works after the fact.
Let me step back a bit and say here's why i'm not surprised by GN reporting that eyes looking down *through the whole press* would likely/potentially not be a good idea: there's more going on than shoulder flexion in the press.
Eye Position and Reflexes when Reflexes work. Let me back up even further and say that the eyes are tied to reflexes that support extension, flexion, adduction, abduction, rotation. By reflex we mean involuntary automatic and near immediate response to a stimulus. Intriguingly, sometimes these reflexive responses can get buggered up, (and with the eyes, have particular effects on posture, among other things) but more on that anon.
When things are working right, we see looking down triggers flexion, looking up triggers extension looking in one direction triggers complementary adduction/abduction/rotation in the direction viewed.
Eye position is then used to complement/strengthen what can most benefit from that reflex. That may change throughout a lift. And what if while one thing is extending something else is flexing? What do we need help with the most? We'll look at an example to try in a sec.
Strengthening what needs to be strengthened throughout a lift
As an example of how eye position might change in a lift, let's take a look at the example from Geoff's article, the kettlebell press. The press is a rich movement: one may need eyes down to support shoulder flexion at the beginning of the lift coming out of the rack, then eyes towards the horizon and looking at the bell when the delts are at the weakest point, so strengthening rotator cuff movements, and post sticking point, eyes up to support the triceps extending (thanks to conversations last year with Zachariah Salazar Z-Health Master Trainer and RKC on these multiple positions in the press). In Pavel's pressing, as RKC Ken Froese pointed out to me, his eyes seem to follow the bell throughout, which may be great for someone with even strength, but not for someone with say a shoulder issue.
So keeping eyes down throughout the movement may be less productive for some people if where the weak link in the move shifts, and changing eye position will enhance that.
Try this at Home: A chin up (hands supinated) uses extension of the shoulder/lats firing, but it also uses elbow flexion (biceps coming into a curl). So what needs more help for you in a chin? Best way to find out: test either/or positions, depending if one's weaker link is shoulder extension/lats (eyes up) or biceps flexing (eyes down). Try both: what works better for you -when? Which is which may change as training progresses, or for just about any other reason, as we'll see below.
When reflexes seemingly aren't firing normally
Why would a doctor whack a knee if a reflex always fired as it was supposed to? We wouldn't need to test something that always works one way. Same thing with eye responses as demonstrated in what are referred to as postural reflexes, richly informed by the visual (and vestibular and proprioceptive) system(s):
Sometimes due to trauma or sometimes a long flight and jet lag, one's postural reflexes get really muted or actually cause the inverse effect reflexively in the body. There are tests for this (if you visit with a z-health certified coach who's done i-phase, for instance, they'll know these position/vision tests). The important thing to get is that our muscular responses - things as seemingly simple and immutable as flexion and extension - are intertwined with the somato-sensory system (visual, vestibular and proprioceptive function), and that these intertwined systems are constantly dealing with various stimuli. As Reiman and Lephart found in 2002:
Obviously, if one's visual responses to a direction are screwed up (say looking down doesn't strengthen your bicep curl, or cue an appropriate postural reflex), then using your eyes in a movement in that direction is also likely not going to help - in some cases it may seem to work against you if your body doesn't like that eye position, performance is going to suffer - until the thing gets fixed. And it is addressable.
Repetez après la model: Test It. So rather than getting super prescriptive about what will achieve what, great to have some heuristics about reflexes and eye position and of course form. But great too (a) to be sure to be able to refine application - like multiple eyes positions may be needed throughout a move and (b) to know that those reflexes are working as designed and (c) just test it.
If an eye position doesn't work - doesn't provide a performance boost or takes away from one - try something else. And if in a simple move like a biceps curl where eyes down should make that curl stronger and it doesn't work, maybe check with that qualified coach who knows how to work with these positions in case it's either a technique thing or something else that may need a bit of work.
We are Complex Integrated Systems There are 11 systems in the human being. They all interact with one another, from our skin to our reproductive system. There's no way we're going to be able know, a priori, what will unequicoably work for ourselves, little own everyone at all times. only salespeople seem to make such unequivocable claims about their products - it slices; it dices. always for everything. Really? What other domain is so certain?
In my main domain of human factors, this is why we can't make claims about the effectiveness of an interface based on how it works for ourselves alone, but have to test it rigerously so that we can say with some statistical power that it is effective to some degree, and even that is constrained like: for people aged x-y with these particular skill sets, they were able to use this tool to complete this task A% better than the previous tool design. Without that - even though we've developed that design with the best models of human performance from motor control to cognition available to us - the best we can say in our domain is "we liked it; why don't you give it a try and let us know if it worked for you."
Broken Record: Test it. Frequently, regularly. Vision is a potent system - the top of the somato sensory hierarchy. Makes sense that when it's firing well, it can help our other systems respond well. To use eye position to enhance a lift, therefore, means testing the eye position to see what action in a lift may need that enhancement - presuming that our visual reflexes are working as they're supposed to work. So again, if eyes down doesn't enhance that biceps curl, may be time to check vision, too. If it is, check eye position with the move. Test various positions through the move.
It's a really simple principle. It means having strategies to deal with a weak result to help make improvements. but at the very least it gives us information about tuning what we're doing.
Citation
Related Posts
I was fascinated by Geoff Neupert's article in the latest Power by Pavel Newsletter (issue 209, 08/09/10) about his experience using eye position in the press. Geoff is the author of Kettlebell Muscle. Absolutely awesome to see eye position highlighted in relation to how that action can support movement practice. That support is rather dependent on where and how in a compound move it's being used, and also what else may be happening in our somato-sensory systems. So let's look at eye position and postural reflexes and how they support muscle action a little more.Geoff writes:
For the last four years, until recently, I promoted a neutral head, eyes down posture for presses and jerks, thinking that this would increase flexion at the shoulder and therefore increase shoulder mobility and allow for the weight to go up easier.
Geoff reports that this didn't work for him. When we understand the roll of vision in position, that result is not surprising, so we'll come onto why. He then proposes a revised move with a different head, jaw and eye position: the neck back a bit, chin up a bit and eyes slightly up.
Geoff says of this approach:
This is excellent: Geoff tested the move to see if it worked better for him, today. Testing a technique is critical as adaptation is pretty individual; testing that neutral head / eyes down thing sooner might have been a good idea too for addressing four years of press frustration.I then corroborated my findings with what the absolute best in the world do, confirmed my position, applied my "new" techniques, and started making progress once again.
 | |
| For more ideas on how to train these eye muscles, see Eye Heatlh: How Fast can you switch focus? |
Test Early; Test Often The key thing to me in this article is that Geoff did "test" his new approach: did it improve his press? he says so an i believe him. Yet while he proposes a new technique for his press, and has some interesting theory to support it, whether or not that approach will be universally successful may be as likely as eyes down through the lift was successful for Geoff. May be. Dunno, maybe.
The take away from this story, at least for me, is less about a new technique that will work for everyone and more about: test it, because what works for you mayn't work for me, or for you later today, no matter how well we hypothesize why something works after the fact.
Let me step back a bit and say here's why i'm not surprised by GN reporting that eyes looking down *through the whole press* would likely/potentially not be a good idea: there's more going on than shoulder flexion in the press.
Eye Position and Reflexes when Reflexes work. Let me back up even further and say that the eyes are tied to reflexes that support extension, flexion, adduction, abduction, rotation. By reflex we mean involuntary automatic and near immediate response to a stimulus. Intriguingly, sometimes these reflexive responses can get buggered up, (and with the eyes, have particular effects on posture, among other things) but more on that anon.
When things are working right, we see looking down triggers flexion, looking up triggers extension looking in one direction triggers complementary adduction/abduction/rotation in the direction viewed.
Eye position is then used to complement/strengthen what can most benefit from that reflex. That may change throughout a lift. And what if while one thing is extending something else is flexing? What do we need help with the most? We'll look at an example to try in a sec.
Strengthening what needs to be strengthened throughout a lift
As an example of how eye position might change in a lift, let's take a look at the example from Geoff's article, the kettlebell press. The press is a rich movement: one may need eyes down to support shoulder flexion at the beginning of the lift coming out of the rack, then eyes towards the horizon and looking at the bell when the delts are at the weakest point, so strengthening rotator cuff movements, and post sticking point, eyes up to support the triceps extending (thanks to conversations last year with Zachariah Salazar Z-Health Master Trainer and RKC on these multiple positions in the press). In Pavel's pressing, as RKC Ken Froese pointed out to me, his eyes seem to follow the bell throughout, which may be great for someone with even strength, but not for someone with say a shoulder issue.
So keeping eyes down throughout the movement may be less productive for some people if where the weak link in the move shifts, and changing eye position will enhance that.
Try this at Home: A chin up (hands supinated) uses extension of the shoulder/lats firing, but it also uses elbow flexion (biceps coming into a curl). So what needs more help for you in a chin? Best way to find out: test either/or positions, depending if one's weaker link is shoulder extension/lats (eyes up) or biceps flexing (eyes down). Try both: what works better for you -when? Which is which may change as training progresses, or for just about any other reason, as we'll see below.
When reflexes seemingly aren't firing normally
Why would a doctor whack a knee if a reflex always fired as it was supposed to? We wouldn't need to test something that always works one way. Same thing with eye responses as demonstrated in what are referred to as postural reflexes, richly informed by the visual (and vestibular and proprioceptive) system(s):
Visual and vestibular input, as well as joint and soft tissue mechanoreceptors, are major players in the regulation of static upright posture. Each of these input sources detects and responds to specific types of postural stimulus and perturbations, and each region has specific pathways by which it communicates with other postural reflexes, as well as higher central nervous system structures.There's even work to suggest that blinking or performing visual sacades may improve postural stability.
Sometimes due to trauma or sometimes a long flight and jet lag, one's postural reflexes get really muted or actually cause the inverse effect reflexively in the body. There are tests for this (if you visit with a z-health certified coach who's done i-phase, for instance, they'll know these position/vision tests). The important thing to get is that our muscular responses - things as seemingly simple and immutable as flexion and extension - are intertwined with the somato-sensory system (visual, vestibular and proprioceptive function), and that these intertwined systems are constantly dealing with various stimuli. As Reiman and Lephart found in 2002:
Motor control for even simple tasks is a plastic process that undergoes constant review and modification based upon the integration and analysis of sensory input, efferent motorWe occaisionally really get how intertwined these actions are if we ever have an inner ear infection, or find ourselves experiencing sea sickness or dizziness.
commands, and resultant movements.
Obviously, if one's visual responses to a direction are screwed up (say looking down doesn't strengthen your bicep curl, or cue an appropriate postural reflex), then using your eyes in a movement in that direction is also likely not going to help - in some cases it may seem to work against you if your body doesn't like that eye position, performance is going to suffer - until the thing gets fixed. And it is addressable.
Repetez après la model: Test It. So rather than getting super prescriptive about what will achieve what, great to have some heuristics about reflexes and eye position and of course form. But great too (a) to be sure to be able to refine application - like multiple eyes positions may be needed throughout a move and (b) to know that those reflexes are working as designed and (c) just test it.
If an eye position doesn't work - doesn't provide a performance boost or takes away from one - try something else. And if in a simple move like a biceps curl where eyes down should make that curl stronger and it doesn't work, maybe check with that qualified coach who knows how to work with these positions in case it's either a technique thing or something else that may need a bit of work.
We are Complex Integrated Systems There are 11 systems in the human being. They all interact with one another, from our skin to our reproductive system. There's no way we're going to be able know, a priori, what will unequicoably work for ourselves, little own everyone at all times. only salespeople seem to make such unequivocable claims about their products - it slices; it dices. always for everything. Really? What other domain is so certain?
In my main domain of human factors, this is why we can't make claims about the effectiveness of an interface based on how it works for ourselves alone, but have to test it rigerously so that we can say with some statistical power that it is effective to some degree, and even that is constrained like: for people aged x-y with these particular skill sets, they were able to use this tool to complete this task A% better than the previous tool design. Without that - even though we've developed that design with the best models of human performance from motor control to cognition available to us - the best we can say in our domain is "we liked it; why don't you give it a try and let us know if it worked for you."
Broken Record: Test it. Frequently, regularly. Vision is a potent system - the top of the somato sensory hierarchy. Makes sense that when it's firing well, it can help our other systems respond well. To use eye position to enhance a lift, therefore, means testing the eye position to see what action in a lift may need that enhancement - presuming that our visual reflexes are working as they're supposed to work. So again, if eyes down doesn't enhance that biceps curl, may be time to check vision, too. If it is, check eye position with the move. Test various positions through the move.
It's a really simple principle. It means having strategies to deal with a weak result to help make improvements. but at the very least it gives us information about tuning what we're doing.
Citation
Morningstar, M., Pettibon, B., Schlappi, H., Schlappi, M., & Ireland, T. (2005). Reflex control of the spine and posture: a review of the literature from a chiropractic perspective Chiropractic & Osteopathy, 13 (1) DOI: 10.1186/1746-1340-13-16
Riemann BL, & Lephart SM (2002). The Sensorimotor System, Part II: The Role of Proprioception in Motor Control and Functional Joint Stability. Journal of athletic training, 37 (1), 80-4 PMID: 16558671
Rougier P, Garin M (2007). Performing saccadic eye movements or blinking improves postural control. Motor control, 11 (3), 213-23 PMID: 17715456
Related Posts
- Why I - train for the sprain
- THe other side of the gym - training the somato-sensory system
- more stuff about integration of systems: z-health overviews.
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Sunday, May 31, 2009
Renegade Row: dynamic strength and balance
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An exercise complex that has recently become a favorite of mine is the renegade row (with push up).
Why? Rows in general are great upper body workouts. Stuart McGill has recently done an article on rows comparing inverted, standing bent over and one arm cable rows for back activation patterns. They are powerful core workouts.
The renegade row is likely closest to the standing bent over row with a few differences - a biggie being balance/control of the weight.
The renegade row, is shown above with Power Blocks. For added strength/stability challenge, put your feet only shoulder width apart, and get out a couple of kettlebells. Why kb's? It takes a bit of extra coordination (ie muscles firing) to keep them steady. That means you're adding a wee bit of balance to the workload.
mc's Renegade Row Sequence
Just to review, here's how i do a renegade row sequence - it may vary from yours.
Pull Part
Push Part:
Now, other variants of this row are, pull left, push up, pull right. Personally, i find it more effective to focus on the pulls, L/R and then the pushes. Your mileage may vary.
Sequencing:
I like to EDT the renegade rows into a set with some lower body work. Somedays its goblet squats, or double KB front squats, or romanian single leg dl's or yesterday it was double kb single leg deadlifts for the lower body work. EDT means going for max sets of each pattern within 15 mins, using a 10RM weight going for only five reps.
Muscles Worked: why i love this excersise.
I love how this sequence makes me feel for the next few days:
A bit of Stability; A bit of Form; a bit of kalos sthenos (beautiful movement)
I also like the momentary loaded, dynamic balance / strength aspect of
Mr. mahler, pictured above, has his feet nice and close - shoulder width at most. He seems, however, to be torquing to the side here. I'd suggest stay more in the level plank and get the hand right up to the waist. You'll note the guy in the vid at the top of this story above doesn't torque but his feet are quite spread.
Get both these parts together and you'll be very pleased with yourself. For instance, take a look at this version: nice level trunk; feet only shoulder width apart; neutral neck position; no torquing on the up.
Now some folks what don't know better may say these are "sissy weights" pirctured, but they may want to reserve that appellation if they can't hold this form with their KB of choice themselves.
As you can see if you have given this sequence a go, it's not easy to get in this kind of dynamic upper body/trunk work, and the RR is way cool.
Practice staying tight (as pavel might say) in the core. You may want to practice doing planks first, or getting used to balancing in form on the bells and just bringing your hand up to your side while maintaining your plank form while one side is off the bell.
Challenging form: balance
I mention that we're working to hold balance when using the KB's rather than the very stable powerblocks. And for me that little bit of stabilization required is just right: not too much instability. What do i mean by "too much"?
Some times you'll see folks using medballs for their pushups - i'm not crazy for that much of a stability challenge - i personally don't test stronger after that; with kb's i do.
By "test stronger" - i mean something zhealth teaches: if you're wondering if a particular
form of an exercise is working for you, do a muscle test (you may need a partner for this) before the test; do the excercise; retest. If you're weaker, there may have been something saying to your nervous system that's not a happy thing.
Ok. what's a muscle test, since there are different ways this term is used. Here, it's pretty straight ahead: it's simply a test to see if your muscles are functioning properly. If you hold your arm up, and your wrist out in extension, i shouldn't readily be able to pull your hand down if everything is firing properly.
Another good example - testing hamstring strength: all's well, you standing with your hands on the wall, looking straight ahead, bent knee, i should have some good resistance pushing down on your calf. Indeed i shouldn't really be able to press a big guy's leg to the ground (as per me here, pushing on Kenneth Jay's calf as Mike Cheatham kindly plays "the wall" for this muscle test at the Denmark09 RKC). I've written before about this kind of thing with the arthrokinetic reflex.
So once you do this test, you may find that you test a little more weakly (muscle is overcome) in a test than before doing pushups on wobbly surface. This is going to get onto a whole jag about instability training, but why jump on a wobbly surface if, say, we have trouble keeping balance with one foot off the ground and we then turn our head sharply? give it a go - how'd you do? Try a few other sports positions and then turn your head (as you might in real life or in a sport); try them with your eyes closed and a good head turn.
Here's a great one: one foot in front of the other, toe touching heel. Stable, or surfer dude? Now close your eyes. More stable or more surfer?
That's our proprioceptive system working really hard since our balance comes from vision, vestibular (inner ear) and proprioception (the nerves in our joints ligaments and muscles saying where in space we are). Apparently 80% of that VVP load comes from the eyes. Take those away, you can give yourself a whole LOT of balance training very quickly.
So why not get good at that, in motion (we move in real life) before going for that wobble board or med ball or swiss ball?
So if you want to work balance, fabulous. get on one leg, turn your head. One leg, close your eyes, turn your head. When you're awesome at moving and balancing, go a bit squishier. Remember, the idea is not to be stable on a wobble board, but stable in motion.
A lot of studies about wobble board adaptations don't demonstrate translation OFF the board into real activities (note, we are NOT talking about swiss ball work in the context of rehab, but regularly fit folk doing their workouts on unstable surfaces.) Here's a great example: this is a super article at the sports injury bulletin on the relationship of the proprioceptive system's mix with the visual and vestibular for balance work. Once you finish the intro though, here comes the wobble stuff. Does it translate off the board?
McGill was one of the first to show that sitting on swiss balls doesn't actually help strengthen the low back. Likeiwise, this is eric cressey's beef with unstable surface training and athetics. All this bosu ball stuff - so what you can balance on one of these - what happens when you get off them? From the actual research Cressey's done, the answer is not alot to less than nothing. A fast muscle test pre and post will tell you the same thing.
At least the recommendations at the end of that sports injury bulletin article is to start balance training on stable surfaces; master that before adding any kind of load - and load can be doing sums while balancing - it doesn't have to be a wobble board (aside: these concepts are all very much part of the z health i phase certification, so if you're looking for a trainer sensitive to improving your atheltic performance in the real world, look for a zhealth trainer with I in the list of their certs).
Summary: Renegade Rows Rock.
Hmm. well. didn't expect a description of the renegade row to become a treatise on the evils of the bosu. The intent was to say, if you're looking for something new to challenge your workouts, the renegade row with its pull and push, done with kettlebells, and especially as part of an EDT upper/lower body set workout, can be simply awesome.
You'll love all the places you're aware of your muscles over the next few days. Tweet Follow @begin2dig
Why? Rows in general are great upper body workouts. Stuart McGill has recently done an article on rows comparing inverted, standing bent over and one arm cable rows for back activation patterns. They are powerful core workouts.
The renegade row is likely closest to the standing bent over row with a few differences - a biggie being balance/control of the weight.
The renegade row, is shown above with Power Blocks. For added strength/stability challenge, put your feet only shoulder width apart, and get out a couple of kettlebells. Why kb's? It takes a bit of extra coordination (ie muscles firing) to keep them steady. That means you're adding a wee bit of balance to the workload.
mc's Renegade Row Sequence
Just to review, here's how i do a renegade row sequence - it may vary from yours.
Pull Part
- pull up one bell to belt line and belt height
- put it down
- pull up opposite side put it down
- repeat 5 times.
Push Part:
- follow the pull sets with 5 perfectly level push ups on the bell handles.
Now, other variants of this row are, pull left, push up, pull right. Personally, i find it more effective to focus on the pulls, L/R and then the pushes. Your mileage may vary.
Sequencing:
I like to EDT the renegade rows into a set with some lower body work. Somedays its goblet squats, or double KB front squats, or romanian single leg dl's or yesterday it was double kb single leg deadlifts for the lower body work. EDT means going for max sets of each pattern within 15 mins, using a 10RM weight going for only five reps.
Muscles Worked: why i love this excersise.
I love how this sequence makes me feel for the next few days:
- it hits the abs, but the obliques it seems in particular
- Lats are loved
- pecs can be quite buzzed
- traps and rhomboids of course get some attention.
- well it's the whole core, holding that plank, isn't it? (word doc about up/low core) - tall, neutral spine throughout.
A bit of Stability; A bit of Form; a bit of kalos sthenos (beautiful movement)
I also like the momentary loaded, dynamic balance / strength aspect of
- just staying stable with both hands on the bells - i think Mike Mahler who's Aggressive Strength hybrid EDT routines introduced me to this fab move once said don't do this with anything smaller than a 16k bell cuz the base of support is too small. Ha! i say. i use 12s.
- staying level in the trunk while pulling up on the bell - muscle control to stay planked and again keep stable on the balance hand/bell combo.
Mr. mahler, pictured above, has his feet nice and close - shoulder width at most. He seems, however, to be torquing to the side here. I'd suggest stay more in the level plank and get the hand right up to the waist. You'll note the guy in the vid at the top of this story above doesn't torque but his feet are quite spread.Get both these parts together and you'll be very pleased with yourself. For instance, take a look at this version: nice level trunk; feet only shoulder width apart; neutral neck position; no torquing on the up.
Now some folks what don't know better may say these are "sissy weights" pirctured, but they may want to reserve that appellation if they can't hold this form with their KB of choice themselves.As you can see if you have given this sequence a go, it's not easy to get in this kind of dynamic upper body/trunk work, and the RR is way cool.
Practice staying tight (as pavel might say) in the core. You may want to practice doing planks first, or getting used to balancing in form on the bells and just bringing your hand up to your side while maintaining your plank form while one side is off the bell.
Challenging form: balance
I mention that we're working to hold balance when using the KB's rather than the very stable powerblocks. And for me that little bit of stabilization required is just right: not too much instability. What do i mean by "too much"?
Some times you'll see folks using medballs for their pushups - i'm not crazy for that much of a stability challenge - i personally don't test stronger after that; with kb's i do.
By "test stronger" - i mean something zhealth teaches: if you're wondering if a particular
form of an exercise is working for you, do a muscle test (you may need a partner for this) before the test; do the excercise; retest. If you're weaker, there may have been something saying to your nervous system that's not a happy thing.Ok. what's a muscle test, since there are different ways this term is used. Here, it's pretty straight ahead: it's simply a test to see if your muscles are functioning properly. If you hold your arm up, and your wrist out in extension, i shouldn't readily be able to pull your hand down if everything is firing properly.
Another good example - testing hamstring strength: all's well, you standing with your hands on the wall, looking straight ahead, bent knee, i should have some good resistance pushing down on your calf. Indeed i shouldn't really be able to press a big guy's leg to the ground (as per me here, pushing on Kenneth Jay's calf as Mike Cheatham kindly plays "the wall" for this muscle test at the Denmark09 RKC). I've written before about this kind of thing with the arthrokinetic reflex.
So once you do this test, you may find that you test a little more weakly (muscle is overcome) in a test than before doing pushups on wobbly surface. This is going to get onto a whole jag about instability training, but why jump on a wobbly surface if, say, we have trouble keeping balance with one foot off the ground and we then turn our head sharply? give it a go - how'd you do? Try a few other sports positions and then turn your head (as you might in real life or in a sport); try them with your eyes closed and a good head turn.Here's a great one: one foot in front of the other, toe touching heel. Stable, or surfer dude? Now close your eyes. More stable or more surfer?
That's our proprioceptive system working really hard since our balance comes from vision, vestibular (inner ear) and proprioception (the nerves in our joints ligaments and muscles saying where in space we are). Apparently 80% of that VVP load comes from the eyes. Take those away, you can give yourself a whole LOT of balance training very quickly.
So why not get good at that, in motion (we move in real life) before going for that wobble board or med ball or swiss ball?
So if you want to work balance, fabulous. get on one leg, turn your head. One leg, close your eyes, turn your head. When you're awesome at moving and balancing, go a bit squishier. Remember, the idea is not to be stable on a wobble board, but stable in motion.
A lot of studies about wobble board adaptations don't demonstrate translation OFF the board into real activities (note, we are NOT talking about swiss ball work in the context of rehab, but regularly fit folk doing their workouts on unstable surfaces.) Here's a great example: this is a super article at the sports injury bulletin on the relationship of the proprioceptive system's mix with the visual and vestibular for balance work. Once you finish the intro though, here comes the wobble stuff. Does it translate off the board?
McGill was one of the first to show that sitting on swiss balls doesn't actually help strengthen the low back. Likeiwise, this is eric cressey's beef with unstable surface training and athetics. All this bosu ball stuff - so what you can balance on one of these - what happens when you get off them? From the actual research Cressey's done, the answer is not alot to less than nothing. A fast muscle test pre and post will tell you the same thing.
At least the recommendations at the end of that sports injury bulletin article is to start balance training on stable surfaces; master that before adding any kind of load - and load can be doing sums while balancing - it doesn't have to be a wobble board (aside: these concepts are all very much part of the z health i phase certification, so if you're looking for a trainer sensitive to improving your atheltic performance in the real world, look for a zhealth trainer with I in the list of their certs).
Summary: Renegade Rows Rock.
Hmm. well. didn't expect a description of the renegade row to become a treatise on the evils of the bosu. The intent was to say, if you're looking for something new to challenge your workouts, the renegade row with its pull and push, done with kettlebells, and especially as part of an EDT upper/lower body set workout, can be simply awesome.
You'll love all the places you're aware of your muscles over the next few days. Tweet Follow @begin2dig
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