Boxplots show the amount of motion in each of six measured directions (X, Y, and Z translation; coronal [Cor], sagittal [Sag], and transverse [Tra] rotation) for all four groups; (a) MAX-trans and MAX-rot during the MR spectroscopic measurement, and (b)
REP-trans and REP-rot. * = significant difference when compared with the young control subject group (YCon) at significance level of P ≤ .008 (Bonferroni-corrected Mann-Whitney posthoc test). OldCon = older control group.