Lateral STJ axis feet that look as though they are pronating

Dave

I think this may be the paper Andrea is referring to

Ian

 

Prediction: bone pin study soon that shows no significant difference in kinematics with and without orthoses. I have no inside info, I'm just guessing.

 

Hi Dave.

In isolation you would expect the rearfoot to supinate, however what about shifts in the lower back, pelvis and hip moving the CoF more medially again? Wouldn't this have the effect of reducing or cancelling out the supination moment?

Also what about the ability for the Talo-Navicular in particular to account for that supination moment through increased mobility (over the STJ)?

Again I'm only thinking out loud here and am asking these questions in the interest of challenging my knowledge and beliefs.

Simon...I think you may well be right...

Regards
A

 

As you have shown, you don't have to be a biomech expert to come up with gold.


1. You have better eyes than me.
2. No
3. Great point. Forefoot pain is out there in bucket loads. But do we hang on to some myth that "its all in the rearfoot"? Despite the forefoot pain being the main complaint, there are many devices out there that end proximal to the met-heads that have no features at all in the distal section. No domes, no padding, no forefoot wedging; nil.


Its has been all about introducing physiological forces at the STJ that dominates a guestimate of 95% of our thinking/discussion. But forefoot pathologies/complaints are surely much much greater than 5%!!!
We carry on as if the heel never lifts in stance IMO, because at FF load, the influence (at the forefoot) of the rear section of an orthotic surely diminishes. At this stage, we have body weight going through the forefoot, and I assume then through the TN, TC and up the leg.

How are we changing the forces through the forefoot at FF load, if the plain shell device ends proximal to the met heads? Surely to change forefoot pathology, the device must have an effect at the distal half of the shell and beyond.



Ron Bateman
Physiotherapist (Masters) & Podiatrist

 

Just downloaded that again Ian thanks just by chance I came across this and might be useful for current case study.