Fig. 2

Mean soleus activity for both limbs during walking with sensorimotor (SM), audiovisual (AV), and combined (AV + SM) biofeedback at the pre-acclimation visit. Biofeedback was provided unilaterally on the more-affected limb. All data has been normalized to the first baseline phase attempted. For each participant, mean soleus activity during early (strides 1–30), mid (strides 91–110), and late (strides 181–210) adaptation and washout (strides 1–30) was calculated and is represented as individual dots. Box plots display the median (IQR) response. During both washout and baseline phases, the biofeedback systems were turned off. *indicates a statistical difference in soleus activity from baseline walking (Wilcoxon signed-rank tests with Holm-Šídák correction; α = 0.05)