Fig. 7
Group comparisons of knee independence during standing. (A) Top: left, right and bilateral knee independence comparison for Group 1 (CV) and Group 2 (Voluntary). Bottom: EMG features in time and frequency domains collected during standing post intervention 1 vs. post intervention 2. Values were averaged among participants and among all assessed muscles. Values are expressed as median + MAD. (B) Top: left, right and bilateral knee independence comparison for Group 1 (CV) and Group 3 (CV-Stand). The graph compared the initial 80 sessions of standing (intervention 2 for group 1; and intervention 1 for group 3). Bottom: EMG features in time and frequency domains collected during standing pre vs. post intervention 1 for Group 3 and post intervention 1 vs. post intervention 2 for Group (1) (C) Top: left, right and bilateral knee independence comparison for Group 2 (Voluntary) and Group 4 (Voluntary-Stand). The graph compared the initial 80 sessions of standing (intervention 2 for group 2; and intervention 1 for group 4). Bottom: EMG features in time and frequency domains collected during standing pre vs. post intervention 1 for Group 4 and post intervention 1 vs. post intervention 2 for Group (2) Differences assessed by Wilcoxon test * p < 0.05. (D) Top: left, right and bilateral knee independence comparison between intervention 1 and intervention 2 for Group 3 (CV-stand). Bottom: EMG features in time and frequency domains collected during standing pre vs. post intervention 1 vs. post intervention 2. (E) Top: left, right and bilateral knee independence comparison between intervention 1 and intervention 2 for Group 4 (Voluntary-stand). Bottom: EMG features in time and frequency domains collected during standing pre vs. post intervention 1 vs. post intervention 2. (F) Box plot comparing trunk independence across groups and interventions. Box plots are mean +/- 1 standard deviation, lines represent 95% confidence interval