Figure 6

Center-of-mass power and work. (A) Prosthesis-side center-of-mass power. (B) Prosthesis-side push-off work. (C) Intact-side center-of-mass push-off power. (D) Intact-side collision work. (E) Intact-side rebound work. Bar and curve colors correspond to Time-torque onsets. Black line is Spring-like condition. Gray line is Normal Walking. Horizontal bars indicate Time-torque periods. Vertical dashed lines indicate mean timing of intact-side heel contact and prosthesis toe-off. Error bars are inter-subject standard deviation. P-values are from repeated measures ANOVA on timing bins. Symbols inside bars indicate significant differences from Spring-like condition. ** = p ≤ 0.01, * = p ≤ 0.05, t = p ≤ 0.1.