Fig. 5

Time-series comparison of normalized muscle activation for each tested walking condition: unperturbed walking (green), user with No Exo (blue), user with Exo-NoAssistance (grey), and user with Exo-Assistance (pink). Each row of graphs corresponds to one muscle. Low and High perturbations for DSRF and SSR are presented in columns. The time interval corresponds to the 500 ms taken to compute the integral for effort assessment. The grey area represent the perturbation duration