Figure 5. A–I, Difference between day 1 and 2 for first stride (shown in A, D, G), early change (average of strides 2–30 strides—shown in B, E, H) and plateau (average of last 30 strides—shown in C, F, I). Bars represent group means ± SE, and significant differences are denoted by asterisks. Step symmetry data are shown in A–C, center of oscillation in D–F, and phasing in G–I. Note that there are no significant differences in the first stride (A, D, G) or plateau values for any of the measures (C, F, I); however, there are differences in early change (B, E, H). The differences between groups in early change values for center of oscillation (E) are similar to those seen in step symmetry (B), where the No Washout group shows the best relearning and the No Switch and Switch Control group show the worst relearning. In contrast, for phasing (H), the No Washout group still shows the most relearning, but No Switch, Switch, and Switch Control groups show similar amounts of relearning. Note: Higher values in Figure 5 mean larger changes across days. This normally means that subjects are closer to symmetry on day 2, but some subjects could over-adapt past symmetry, which would also result in larger delta values.