480620.fig.006a
(a)
480620.fig.006b
(b)
Figure 6: CSA measurement. (a) The CSA after 6 sessions of training in HFS. (b) The CSA after 6 sessions of training in LFS. HFS: high-frequency electrical stimulation group. LFS: low-frequency electrical stimulation group. T: the trained leg. UT: the untrained leg. CSA: cross-sectional area. All values are the mean ± SD.