Fig. 5
Intervariable correlations for change in pelvic drop, mediolateral component of GRF and medial knee JRF. Each point represents data from a single subject. For two subjects who received FES with two different current levels, results from both have been plotted. Strong positive correlation was found across all variables. a. Reduction in pelvic drop AUC versus reduction in medial knee JRF impulse (R = 0.78, R 2 = 0.59, β = 0.074, 95 % CI [0.041, 0.11], p < 0.001). b. Reduction in pelvic drop AUC versus reduction in mediolateral GRF impulse (R = 0.75, R 2  = 0.54, β = 0.0053, 95 % CI [0.0028, 0.0079], p < 0.001). c. Reduction in mediolateral GRF impulse versus reduction in medial knee JRF impulse (R = 0.88, R 2 = 0.75, β = 11.64, 95 % CI [8.11, 15.17], p < 0.001). AUC area under the curve, GRF ground reaction force, JRF joint reaction force