Pronation of the foot is a natural movement that occurs during foot landing while running or walking. It is the inward rolling or tipping of the ankle and arch, which creates some shock absorption as the foot hits the ground after each step. Pronation is necessary for proper gait, but its important to have the right amount of pronation. Not enough or too much pronation can both be bad for the feet.

Abnormal pronation occurs when a foot pronates when it should supinate, or overpronates during a normal pronation period of the gait cycle. Overpronation happens when the arches of the feet flatten more than they would normally, putting strain on muscles, tendons, and ligaments that support the arches. Overpronation increases the risk of foot and leg injuries.

In summary, pronation of the foot is a natural movement that occurs during foot landing while running or walking. It is the inward rolling or tipping of the ankle and arch, which creates some shock absorption as the foot hits the ground after each step. Overpronation happens when the arches of the feet flatten more than they would normally, putting strain on muscles, tendons, and ligaments that support the arches.