Fig. 6.

Ankle plantar flexion versus ankle inversion peak torques. The scatter plot shows MG peak torques in different planes and for each participant separately. Each circle denotes the peak torque of ankle plantar flexion (ordinate) and ankle inversion (abscissa), averaged across ten stimuli for each stimulation level and participant. Pearson Correlation Coefficient (R) and the slope (S) of regression lines (dashed line) fitted to individual data are shown. In all cases the correlation coefficient reached statistical significance (P < .01). Note the strong linear association between torques of plantar flexion and ankle inversion, with the torque of ankle inversion corresponding to about 13% of the plantar flexion torque on average.