Alan, Ken and Colleagues:
Alan wrote in response to Kevin:
<< I can readily accept your two qualifications relating to STJ axis
variability
and to variation in ligamentous strength. Now, can you agree with my basic
concept of retrograde foot control, in stance and gait, by means of selective
segmental input( particularly that of the first ray ) plus midtarsal force
recruitment as needed? By way of explanation as to the pronatory sequence,
it was intended as a normal average adult situation in which the STJ axis was
presumed to be of average orientation and the ligamentous and fascial
trussing
firmly efficient. >>
In Alan and Ken's posting from 8/31, the following sentence was written: "It
has been generally thought that the subtalar joint directs and controls foot
pronation (and supination) whereas IN REALITY, SUBTALAR MOTION AND POSITION
FOLLOWS THE DICTATES AND DIRECTION OF THE FOREFOOT!
My response was meant to be a rebuttal argument to your "capitalized
statement", nothing more, nothing less. I also mentioned in my last posting
that I do agree, in most feet, that the forefoot does control the rearfoot's
position. However, I also feel that, in many feet, that the forefoot follows
the dictates and direction of the rearfoot.
Unfortunately, I do feel this strong obligation, no matter how annoying it
may be, to object to statements which I believe are not totally true. My
comments are not at all meant to be disrespectful. Plenty of my professors in
podiatry school also found my questions and statements annoying. I think my
comments serve a purpose, or I wouldn't be making them. Please forgive me if
my comments were taken the wrong way.
I do enjoy the opportunity to debate and discuss biomechanics in this forum
since I now have very few teaching opportunities at CCPM and mostly I am
giving an occasional seminar on foot biomechanics. Most of my time is spent
treating patients. Very little of my time is spent teaching and lecturing.
(Actually, much of my time is spent at the soccer field watching my two sons
play soccer.)
By the way, I am looking forward to getting a look at Bruce Hirsch's MRI tape
if you would be so kind to send it my way when it is completed.
Respectfully yours,
Kevin
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Kevin A. Kirby, D.P.M.
Assistant Clinical Professor of Biomechanics
California College of Podiatric Medicine
Private Practice:
2626 N Street
Sacramento, CA 95816
Voice: (916) 456-4768 Fax: (916) 451-6014
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