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Fig. 5. (A) Time of gluteus maximus onset during walking (closed circles) and
running (closed squares) as a percentage of stride duration. (B) Time of
maximum gluteus maximus magnitudes (closed symbols) and maximum trunk pitch
velocities (open symbols) during walking (circles) and running (squares) as a
percentage of stride duration. Heel strike is broken line (0%). Values are
means ± 1 s.e.m.