A, averaged full-wave-rectified tibialis anterior EMGs for movement and non-movement (stationary) task conditions from a single subject. B, average EL and ML reflex magnitudes (and standard deviations) for the group of five subjects, over control and movement conditions (30, 60 and 90 r.p.m.). C, group average M wave response magnitude, measured from the EMG of abductor hallucis muscle, sampled from interdigitated single-pulse trials.