By comparing the gait parameters of FRDA and control group, we found significant differences for several indexes, as reported in Table 2. Bonferroni correction for multiple comparisons were applied and α = 0.0013 has been assumed as threshold for significance (α = 0.05 divided by 37 comparisons). The patients showed a significant reduction of walking velocity (0.9 vs. 1.2 m/s, FRDA vs. controls: t(81) = -6.6, p <.0013) with a shorter step (0.36 vs 0.41 m: t(103) = -7, p <.0013) and stride length (0.71 vs 0.82 m: t(107) = -7.8, p <.0013) and an increase of the stride time (1.3 vs 1 s: t(130) = -8.8, p <.0013). The maximal lateral displacement of the COM were double than controls (77.8 vs 34 cm: t(34) = 5, p <.0013), and the % of double support was increased (24.8 vs 17.7: t(66) = 4.5, p <.0013).