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. 2017 Sep 11;14:92. doi: 10.1186/s12984-017-0306-2

Fig. 1.

Fig. 1

Mean +/- one standard deviation KIN (Blue line) and EFP (Red line) sagittal plane hip powers are shown. Percent gait cycle is shown on the abscissa. End of stance phase occurred at ≈ 62%GC. Concentric contractions are positive