Figure 9

Variability of prosthesis timing, prosthesis work and step length. (A) Inter-stride standard deviation in Time-torque onset time. (B) Inter-stride standard deviation in prosthesis net work. (C) Inter-stride standard deviation of step length. Colors correspond to Time-torque bins. Horizontal black line is Spring-like condition. Gray line is Normal Walking. Vertical dashed line indicates mean timing of intact-side heel contact. Error bars are standard deviations of inter-stride standard deviations. P-values are from repeated measures ANOVA on timing bins. Symbols inside bars are significant differences versus Spring-like condition. Brackets with symbols indicate pairwise differences between timing conditions. ** = p ≤ 0.01, * = p ≤ 0.05, t = p ≤ 0.1.