Figure 4From: Feasibility and effects of patient-cooperative robot-aided gait training applied in a 4-week pilot trialPatterns of EMG norm activity over one gait cycle ranging from one initial contact (0% gait cycle) to the next initial contact (100% gait cycle). The dashed line represents the average muscle activity recorded from healthy subjects S01–S16 during treadmill walking. The solid line represents the discrete "on"/"off" signal NormAct(S).Back to article page