How does the shape of a runner’s foot influence his foot-to-ground contact pattern?
Earlier theories held that the foot-to-ground contact pattern is influenced mainly by the shape of the longitudinal arch. Specifically, it was thought that runners with high-arched feet tend to emphasize supination (too little pronation), while runners with low-arched or flat feet tend to overpronate. However, recent studies have shown that this is not the case. Quite generally speaking, any attempt to infer from the static (stationary) to the dynamic (moving) state is prone to error. This is due to marked interindividual differences in the overall movement pattern, in particular differences in the angular motion of hips, knees and ankles. It is this dynamic movement pattern that largely determines the magnitude of forces which arise.
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