Figure 3. Representative raw traces.

Conditioned MEPs (A, B, E, F) and conditioned CMEPs (C, D, G, H) during PRE and POST under control conditions (CTRL; A–D) and with attenuated muscle afferent feedback (FENT; E–H). The dashed box surrounds the amplitude of the MEP and CMEP in the silent period following conditioning TMS at PRE. The arrows indicate the timing of the conditioning and test stimuli. In this subject, while the conditioned MEP is reduced in size at POST compared to PRE during CTRL (A, B), this effect was not evident during the exercise performed with afferent blockade (i.e. FENT; E and F).