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Median muscle activation onsets for the sternocleidomastoid (Sterno), medial gastrocnemius (Gastroc), and tibialis anterior (Tib) ipsilateral to and contralateral to turn direction for PD OFF, PD ON, and controls during turns using the matched (A) and unmatched (B) turn strategies. Muscle activity onsets are expressed as a percentage of the first stride of the turn. Error bars indicate upper and lower quartiles.
