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Top Row) Mean knee extensor torques across the gait cycle. Bottom Rows) Mean sagittal plane hip, knee, and ankle joint angles across the gait cycle during the baseline condition (black-dashed), the free knee condition (red), and the powered exoskeleton (blue) conditions. The shaded regions represent ±1SD from the mean. * Indicates significant difference between the respective exoskeleton condition and baseline (p<0.05).
