Fig. 2

A flowchart depicting the experimental protocol. After enrollment, participants completed three experimental blocks in a randomized order. Each block corresponds to one of the three test conditions (HKIC, ÖSSR, & PRES). The blocks for the HKIC and ÖSSR conditions included acclimation visits to allow participants to learn to sit, stand, and walk with the Power Knee. The activities in each dashed box occurred on separate days to mitigate fatigue effects.