Forefoot running prevents overpronation in two major ways. First, there’s a much flatter placement of the foot onto the ground at landing. This helps impact pressure spread out across a larger area of the foot so the impact can be absorbed without creating dangerous over-pressure hot spots, which would otherwise push foot pronation out of a safer range. Secondly, the movement path of the foot (forefoot-to-heel) improves the stability of the heel by allowing a briefer interaction of the foot with the ground as compared with heel strike running, which is one of the main causes of overpronation. Read more here!
