Supertraining

To Aaron or John (I'm not sure which),

I agree, you were right to correct my improper use of the word balance.  It
is indeed an equilibrium situation.

But I don't understand the following sentences - 

What important about neutral spine position relative to the posture 
it can achieve is that the properly adapted S-shape posture will 
assume a neutral spine position that will possess for the human a 
better mechanical advantage to achieve and maintain upright posture 
then the poorer adapted postures.  (Sentence has grammatical errors and doesn't 
make sense - also, a better mechanical advantage for what?  How long does the 
person need to maintain this neutral posture to make use of this better 
mechanical advantage?)

Both good and poor postures will have to adapt changes. The importance of 
proper posture is that when standing it will take less muscle effort and less 
strain on the discs to do it. 

Do we spend all day standing still? - How about sitting is it always better to 
be sitting in a rigid upright posture?

To conclude, I have a question for john-aaron. 

In your opinion should the ideal Olympic lifting and golf address postures both 
involve the maintenance of a constant ideal neutral (or proper S-shaped) spine? 
  

Chris Eastham 
Melbourne, Australia
 
===================== 

<<<<<----- Original Message ----
From: Aaron Forbes < <mailto:OrthoPro%40msn.com> [EMAIL PROTECTED]>
To: 
Sent: Saturday, April 14, 2007 6:27:39 AM
Subject: [Supertraining] Re: Ideal Spinal Posture: Equilibrium truer then
Balance

--- In Supertraining@ yahoogroups. com, "chris eastham" <[EMAIL PROTECTED]> 
wrote:We've surely moved a long way forward from Florence kendalls 
day, but even> then they understood that posture is about a state of 
balance. And we all know from attempting to balance a backetball on 
the tip of our finger, that it involves constant adjustment.

****
Chris your illustration of balancing a basketball relative to say 
the spine producing force to stand upright is not mechanically 
appropriate. 

It would be more truly stated this way. We all know from 
attempting to balance the person opposite us on a teeter totter how 
it involves constant adjustment. 

AS your Dr Alan Walmsley stated: " On the topic of neutral posture 
that even if the spine appears to be maintaining a stable neutral 
posture, the individual vertebrae will be moving around and 
constantly adjusting independently of one another. This constant 
adjustment will be vary widely from person to person 

When you stand upright, moving into neutral posture each vertebra 
must be extended or moved on the one below to achieve the upright 
posture. Each on these vertebra must reach not a balance but an 
equilibrium that from the outside as Dr. Walmsley said appears to be 
a stable posture but is not. 

What important about neutral spine position relative to the posture 
it can achieve is that the properly adapted S-shape posture will 
assume a neutral spine position that will possess for the human a 
better mechanical advantage to achieve and maintain upright posture 
then the poorer adapted postures. 

Both good and poor postures will have to adapt changes. The 
importance of proper posture is that when standing it will take less 
muscle effort and less strain on the discs to do it. 

Lets look at the Teeter totter again examining the difference 
between good and poor posture. 

You have a individual with a 100 lb trunk with properly adapted 
posture. When achieving upright posture their center of mass 
(relative to a vertebra being extended)is a distance of 1x from the 
fulcrum point of the teeter totter. 

Next you have a person with poor posture. When they achieve 
upright posture their center of mass (relative to a vertebra being 
extended) is a distance of 3x from the fulcrum point of the 
vertebral tetter totter. 

Both tetter totters take constant adjustments to keep in 
equilbirium. Now which tetter totter system would you want? The 
one with the weight 1x from the fulcrum or the one that has weight 
that is a 3x distance from the fulcrum?

It should be obvious or a no brainer that you want the one that can 
move the weight a distance of 1x from the fulcrum. It will take 
less weight or your force on your part to control the weight when it 
is a distance of 1x from the fulcrum then 3x. 

Their will be half the force being created at the fulcrum point in 
the good posture versus the poor posture and so your parts like the 
disc will last longer. >>>>>>>