Having said that, I suffer from arthritis in my fingers and to some extent my feet. I do notice that if I've had shoes on that immobilise my feet (ie - most shoes), they tend to stiffen up and become painful for a few days afterwards. On the other hand, remaining barefoot and allowing my feet and toes to naturally flex when walking, the arthritis doesn't bother me unduly. Bare feet tend to be more active - I find that I naturally curl my toes periodically even when sitting still, which helps keeps the joints mobile.