Fig. 6.

a Schematic representation of SDSS and EMG electrodes placements in Experiment 2. For SDSS electrodes, MP medial proximal; LP lateral proximal; MD medial distal; LD lateral distal. EMG electrodes placed over the m. soleus from medial to lateral portions as M2, M1, L1, and L2. b M-waves in each active electrode location (i.e., M2, M1, L1, and L2) during SDSS (colored lines) and SES (black lines) in one participant. Waves from 5 ms after the stimulation onset are shown. Dotted lines indicate M-wave amplitude during SES (color figure online)