Comparative Effect of Training Methods to Reduce Forefoot Loading in Carbon Fiber Custom Dynamic Orthoses

Carbon fiber custom dynamic orthoses (CDOs) include a full-length footplate, a stiff posterior spring, and a cuff that wraps around the leg below the knee. CDOs restore function after limb trauma, decrease forefoot loading, and reduce pain. However, initial introduction to a CDO is not consistent, so this study is being conducted to determine if different methods of training alter forefoot loading during gait. Unimpaired adult participants will be randomized to one of three groups: 1) no feedback, 2) visual feedback of forefoot force, and 3) visual feedback of cuff forces. All participants will walk at a controlled speed on a treadmill without the CDO, after initial introduction to the CDO, and after completing two rounds of training in the CDO.