Dear Maire
As the biceps femoris muscle is the evertor of the calcaneous bone at heel
strike (just sit and place your fingertips on your biceps tendon and evert
your feet gently, it fires!)
and as you deal with podiatry, I thought that you would be covered because
you are dealing with foot problems.
When I work on the foot and checking motion, I always check the motion of
the biceps femoris and both the superior and inferior tib-fib joints
because they are an integral part of the motion of the ankle especially in
those with reduced passive dorsiflexion and calcaneal eversion.
Have you ever noticed how reduced passive dorsiflexion is related to tight
hamstrings and low back pain? They go hand in glove. This is more evident
when one follows the fascial plains.
One can trace the anlke to the opposite lats dorsi and low shoulder. This
is not an uncommon clinical finding in athletes who have difficulties in
through swing motion of their arms, these athletes tend to have an
abduction swing (on the opposite side to foot problems) and thus lose
drive via their arms when this condition is present. Change the fibula
motion and the arm swing 'drive' changes automatically to normal.
Regards,
Paul Conneely www.musmed.com.au
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