Hello, As a student just getting to grips with the biomechanics side of the job I would just like to clarify if I have an understanding of how a medially/lateraly deviated STJ axis affects the muscles that control the moments about the axis. We haven't been taught a great deal about this in uni, I was actually shown on a placement how to plot the axis by putting the foot in neutral and trying to eliminate any frontal plane motion when pressing on the heel.....Anyway the pod i was with said (although not definitively) that the muscles inserting around the axis would change functionally if the axis was medially or laterally deviated due to longer/shorter moment arms created by the deviation. For example if the axis was medially deviated then the peroneous brevis muscle would gain a greater mechanical advantage and pronate the foot further....That bit seems clear, but the functioning of tibialis posterior not acting to invert the foot?? Or contributing to the pronation moment about the axis?? It was explained to me that if the axis crossed the insertion of the tibpost then its function would change.
Members do not see these Ads. Sign Up.
What Dr's Kirby, Spooner and others are writing on this site seems to make more sense than the Root theory that we are being taught. I appreciate that looking at biomechanics from a historical perspective in terms of Root/Hicks and how ground breaking their work is needs to be a part of our course, but things do seem to have advanced to new paradigms such as 'tissue stress' and pointed in the direction of Benno Niggs work. We have touched on tissue stress in my final year and the biomechanics sessions do appear to be focusing on presenting pathology and how to best alleviate the patient of any pain they are experiencing instead of trying to realign or correct their foot function to a theoretically norm.
I'm having Dr Kirby's 3 books for xmas so hopefully that will help greatly with my studies of this fascinating subject.
Would be great if someone could help me with clarification of the above...
Cheers
Mike..
Loading...
- Similar Threads - Deviation STJ axis
-
- Replies:
- 0
- Views:
- 503
-
- Replies:
- 142
- Views:
- 41,451
-
- Replies:
- 4
- Views:
- 4,047
-
- Replies:
- 67
- Views:
- 56,358
-
- Replies:
- 5
- Views:
- 861
-
- Replies:
- 25
- Views:
- 8,413
-
- Replies:
- 1
- Views:
- 4,256