Knee flexion and vertical ground reaction force for the slow in comparison to the FluMo and the control 1 conditions.

The grey areas represent the range between the mean plus/minus standard deviation of the vertical ground reaction forces (A, B) and knee flexion (C, D) for young (A, C) and elderly (B, D) subjects for the conditions control 1 and FluMo in level gait. The black lines represent the mean of the two slow gait trials for each subject.