Fig. 8

Assessment of the set-point generated by the two assistive strategies. A The phase portrait similarity between the set-point and the movement of the master leg used for generating it. B The correlation between the set-point and the movement of the equivalent leg (a correlation of 1 corresponds to a perfect synchronization). Length bars indicate the median value and whiskers indicate the 10th–90th percentiles. C The boxplot of the delays between the maximum knee flexion between the set point and the movement of the equivalent leg. Markers (*) show significant differences between experimental conditions