Leg muscle EMGs and center of pressure (COP) trajectory.

<p>A) Right <i>tibialis anterior</i> (rTA) anf left <i>gasctrocnemius</i> (lGN) electromyographic activity during gait initiation and walking for one trial and one subject. B) COP trajectory reconstruction obtained from the force plate signal during one trial of gait initiation and one trial of walking.