Quote:
> I'm curious about the cause of my tendinitis for several
> > reasons. Firstly, the condition is manifest in the tendon that
> > connects the tibialis anterior muscle to my foot--at the base
> > of my shin, just above the ankle. This seems an unusual place
> > for cyclists to develop tendinitis. The achilles tendon, knees
> > and wrists are more common troubled areas.
> > Secondly, this condition seems to follow my switch to
> > SPD pedals, a locking cleat mechanism which permits only an
> > insignificant degree of lateral float while pedaling--if any at
> > all. I wonder if this is (part of) the cause.
Scott: As an orthopaedist with a long (30 yr.) fascination with
biomechanics, I'd hazard a guess that the pedals you've adopted may
well be contributing to your discomfort. But, do we know the pain is
arising in your tibialis anterior. If so, it's not the back-stroke
phase of your ankling motion that seems most likely to be at fault, but
the recovery from the back-stroke, as you pull up toward top dead
center. That's when your tib/ant is going to fire most stronly. On
the other hand, if the pain is due to peroneal tendinitis, it may well
be your back-stroke. What's your take on the differential? Has anyone
with anatomical insight probed your leg to narrow the possibilities
among the potential offenders?
Michael Mayor
Dartmouth,
Hanover, NH