Figure 4

Stance phase RMS EMG for without vs. passive vs. therapist-controlled orthoses across speeds. Muscle activation amplitudes for tibilais anterior (TA), soleus (SOL), medial gastrocnemius (MG) and lateral gastrocnemius (LG). Data is from subjects with partial paralysis who walked with partial bodyweight support on a treadmill at (top to bottom) 0.36 m/s (five subjects), 0.54 m/s (five subjects), 0.72 m/s (four subjects) and 0.89 m/s (four subjects). Bars indicate mean ± standard error of the normalized average root mean square (RMS) EMG amplitude calculated during the stance phase for walking without-orthoses (WO), wearing orthoses unpowered or passive (PA) and wearing orthoses powered under pushbutton control by a therapist (TC).