What is Pronation?

Pronation is the natural movement of the foot rolling inward as it lands on the ground. It is your body's built-in suspension system. When your foot hits the ground, the arch flattens slightly to absorb the impact forces.

Everyone pronates. It is necessary for healthy running.

The Spectrum

1. Neutral Pronation: The foot rolls inward about 15%. This effectively distributes impact.
2. Overpronation: The foot rolls inward excessiveley (more than 15%). The arch collapses too much, which can twist the leg and stress the knee. Common in people with flat feet.
3. Underpronation (Supination): The foot doesn't roll inward enough.

Why "Overpronation" Got a Bad Name

For decades, the running shoe industry focused on "controlling" overpronation. They convinced runners that pronation caused injuries and sold heavy, stiff "Motion Control" shoes.

Modern Science: We now know that pronation isn't the sole cause of injury. Many runners overpronate heavily and never get injured. It only needs correction if it's causing specific problems.

Shoe Selection

• Neutral Runners: Can wear "Neutral" shoes.
• Mild Overpronators: Can usually wear "Neutral" or "Stability" shoes.
• Severe Overpronators: May benefit from "Stability" shoes (with firmer foam on the inner side, known as a medial post) or "Motion Control" shoes.

How to Check Your Pronation

The Wet Foot Test: Step in water, then step on paper.

• Whole footprint visible: Flat foot (Likely Overpronator).
• Half footprint: Normal arch (Neutral).
• Just heel and ball: High arch (Likely Underpronator/Supinator).

Pronation is not a disease; it's a shock absorber. Don't try to fix it unless it's actually breaking you.