Grand average reflex traces for all 5 stimulation conditions across all Participants (n = 16) in PL, MG, and TA muscles at specific walking phases. A) early stance (phase 1), and B) swing (phase 9). Abbreviations: PL = peroneus longus, MG = medial gastrocnemius, TA = tibialis anterior. Other abbreviations as in Figure 4. Note that the stimulus artefact has been removed from all traces and replaced by a flat line extending from time 0 to ~50 ms post-stimulation.