Fig. 3.
Characteristics of the stance leg and torso were associated with swing-phase GM activity in the contralateral leg. A: swing-phase GM activity was significantly associated with mediolateral CoM displacement (xCoM), velocity (vCoM), and acceleration (aCoM), as well as by the simultaneous stance-phase GM activity in the contralateral leg (GMst). Error bars represent SE. *Significant effect (P < 0.05). B: for a single participant, GM activity is illustrated for Active and Inactive strides. C: the CoM is farther from the stance foot throughout the Active strides. D: GM activity of the contralateral stance leg is higher during the Active strides than during the Inactive strides. For B–D, the lines represent averages and the shaded area represents 2 SDs around the average Inactive stride.