Recordings of SO H-reflex from one subject.

<p>Data recordings of SO H-reflex (% Mmax) from one subject during barefooted (dots) and high-heeled (triangles) walking. The stimuli to elicit the H-reflexes were given every 2 s corresponded to 25% (±10%) of the resting Mmax and were slightly out of phase with the gait cycle, which ensured the stimuli to be dispersed randomly over the gait cycle (see text for further explanations).