Under foot dorsal extension, EMG activity of the m. vastus medialis increased by SRM = 1.39 (at 45° knee flexion on the leg press) and SRM = 1.08 (at 90°). The corresponding data for the m.

at 45° and 90° knee flexion. Single leg hop distance was measured between the tests. Intra-individual changes between with and without dorsal foot extension were quantified and compared by ...