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Change in TA stretch reflex after suprathreshold PAbi-PAS at rest. (A) Right ankle angle (°). The vertical line indicates the onset of the imposed plantarflexion perturbation. (B) TA rectified electromyographic (EMG) trace prior to (solid line) and following (dashed line) the suprathreshold PAbi-PAS intervention. Data are the average for 30 traces.
