Better protection for your ankles while running requires the switch from heel strike to forefoot strike running because the pressure distribution changes, where peak pressure is near the outside edge (lateral) of the forefoot and is dissipated more evenly without creating overpressure hot-spots on the foot. This allows the ankle to maintain postural stability because there’s no excessive impact to manage and compensate for. Its really that simple. Read more here about why heel strike running is the main cause of ankle injuries.