Fig. 1From: Muscle activation strategies of people with early-stage Parkinson’s during walkingPlot showing the average sEMG profiles with the standard deviation bars of TA muscle between a PD and HOA subjects, b PD and HYA subjects, c HOA and HYA subjects for sub-phases of gait cycle (first double support (1DS), single support (SS), second double support phase (2DS) and swing (SW) phase)Back to article page