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. 2015 Feb 22;12:21. doi: 10.1186/s12984-015-0014-8

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© Malcolm et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Hip joint power and work. (A) Prosthesis-side hip power. (B) Prosthesis-side hip positive work during swing initiation (H3, 50-90% stride). 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 period. Vertical dashed lines represent mean timing of intact-side heel contact and prosthesis toe off. Error bars are inter-subject standard deviations. P-values are from repeated measures ANOVA on timing bins. Symbols inside bars represent significant differences versus Spring-like condition. ** = p ≤ 0.01, * = p ≤ 0.05, t = p ≤ 0.1.