Interesting. I know nothing really but I am very unflexible (think running in formative years) and have whip callouses. I had never heard that term before but it is SO appropriate!!!

My PT is treating me with stretching exercises and orthotics. It is so beautiful when I walk or run in the orthotics, my feet go straight ahead and there is no turning. But I think I'm different in that when I walk I turn after heel strike. When I run I vary but a lot of that is to do with the orthotic experimentation -- I have them for a bit then go back in and she changes/adjusts. I do know that she thinks part of my stride problems are due to lack of flexibility.

I'm just happy to know that other people have those callous things!!! I always feel so bad when I get pedicures, the salon has more work with me than others.