Fig. 2.

Effects of the exercise program z score changes between groups in tract-specific and global fractional anisotropy. Data analyses were primarily conducted under the per-protocol principle—that is, participants attending at least 70 % of the sessions. Baseline z score of the outcomes was calculated by subtracting the mean value and dividing by the SD of each outcome. Post-exercise z scores were calculated by subtracting the baseline mean and dividing by the baseline SD, being a z score of the change in each outcome. CI= Confidence interval; FA= Fractional anisotropy. *= p < 0.05 before adjusting for multiple comparisons.