Figure 3.

Mediolateral foot placement was significantly associated with various combinations of swing phase gluteus medius activity (GM_sw) and metrics quantifying the initial mechanical state of the swing limb. The regression coefficients are illustrated for (a) the control group, (b) the low fall risk hemiparetic group, and (c) the higher fall risk hemiparetic group. For all panels, the bar represents the regression coefficient, the error bar represents standard error, and asterisks (*) indicate a significant (p < 0.05) association. For comparison purposes, the control group regression coefficients are indicated in panels (b) and (c) using horizontal dashed lines. Exclamation marks (!) indicate a significant difference between the indicated regression coefficient and the matching regression coefficient in the control group. x_swf = initial swing foot displacement, v_swf = initial swing foot velocity.