Shock attenuation? subtalar pronation?

Thats the one! This was the conclusion I was recalling:

 

Hi Folks after a full copy of the paper Ian linked

 

Only if your orthosis provides enough external supination moment to overcome the residual pronation moment. Otherwise the joint will not change it's position.

Think of a see-saw, I put a fat kid on one end, the see-saw moves until it hits the ground (end of range of motion) i keep putting more and more fat kids (who've eaten too many waffles) on the same end of the see-saw, the see saw does not move but the compression between the see-saw and the ground increases (residual moment increases), now i put a small skinny kid on the other end, the see-saw won't move, but the compression forces between the see-saw and the ground are now reduced (i.e. the residual moment is reduced. Only when I've put enough skinny kids on the end of the see-saw will we overcome the residual moment and see a change in position of the see-saw.

 

Mike,

As you know I can't get Med Sci Sports Exercise pre 1996 I'm afraid buddy, but here is the article Craig mentioned for those interested

Ian

 

Ok, I've mixed some terms, but I've tried to say the same, sorry for that, so I ment I try to create a external supination moment with an orthotic and of course the force need to be high enough to change the STJ position (Can put the kids on a diet ;-)), no waffles before I start)
Thx

Kerstin

 

A kind gentleman has helped me out, heres the full text for anyone who wants to have a read - re knee kinematics and running on cambers.