Figure 4

Mean difference with baseline EMG activity. The differences (mean and standard deviation) between the EMG activity at baseline and during, immediately after and the day after movement training are shown (0 = no difference with the baseline value) for the SIS group. The differences (mean and standard deviation) at baseline between the EMG activity of the control group and of the SIS group are also plotted (grey band). * Significant difference in the group with SIS compared to their baseline trials.