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Change in weakness threshold when changing from IMC to five- and three-synergy control for nondisabled and moderate and severe crouch gait. Negative values indicate decreases in weakness threshold when decreasing control complexity (# of synergies) from IMC to five- or three-synergy control. Larger values indicate greater effects of altered control. (Top) Change in hip and knee muscle weakness thresholds. (Bottom) Change in ankle muscle weakness thresholds.
