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Figure 3 | Journal of NeuroEngineering and Rehabilitation

Figure 3

From: The influence of push-off timing in a robotic ankle-foot prosthesis on the energetics and mechanics of walking

Figure 3

Change in metabolic rate versus Time-torque onset. (A) Change in metabolic rate with respect to the Spring-like condition versus Time-torque onset. Colors are different subjects. Thin solid black line shows linear regression. Curly brackets indicate borders of Time-torque bins. (B) Change in metabolic rate for each Time-torque bin. Bar colors correspond to Time-torque onsets. Horizontal black line is mean for Spring-like condition. Gray line is mean for Normal Walking. Vertical dashed lines represent mean timing of intact-side heel contact. Error bars are inter-subject standard deviations. P-values are from repeated measures ANOVA on timing bins. Symbols inside bars indicate significant differences versus Zero-work estimate. Brackets with symbols represent pairwise differences between timing conditions. ** = p ≤ 0.01, * = p ≤ 0.05, t = p ≤ 0.1.

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