Bowing forward puts the center of the runner’s weight at the front of his foot, which avoids landing on his heel and employs the use of the spring mechanism in the foot. It is also easy for the runner to avoid putting the foot in front of the center of his weight, the effect of which is a sudden stop. On the other hand, the existing position of the body is fundamental, and the runner must maintain the relaxed position of the torso and the standing and constant position of the body. This helps prevent infection as long as the body is relaxed, non-chord and non-rigid. A common mistake in running is the chin tilt and shoulder clatter.
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