Fig. 4

Change in metabolic rate plotted against exosuit ankle peak moment. Black, green, blue and red line respectively represent population average second order polynomial curve fits for Discrete, Continuous-up, Continuous-down and the average of Continuous-up and Continuous-down called Continuous-bidirectional. Shaded areas represent standard error of Discrete, Continuous-up and Continuous-down (for Continuous-up standard error is only plotted in the positive direction and for Continuous-down it is only plotted in the negative direction). Bi-colored symbols represent significant differences (P ≤ 0.05) between the curve fits of the different conditions with the colors in the symbol evaluated at peak moment levels from Discrete. Time series plots show population average exosuit ankle moment profiles at the peak moment levels of Discrete