Amplitudes of motor evoked potential (% of M-response) during active conditions.

Data are presented as the mean ± SEM. a, b,and c indicate significant differences between the R FCR task and the R AD task, between the R FCR task and the R RF task, and between the R FCR task and the R TA task, respectively. Significance level was set at P<0.05. RMT: resting motor threshold. R: right; AD: anterior deltoid; FCR: flexor carpi radialis; RF: rectus femoris; TA: tibialis anterior.