One fact that doesn’t get enough attention is heel strike running causes foot over-pronation, which is defined as excessive side-to-side motions of the heel during the stance phase of running. The reason heel strike running causes overpronation is because the distinct plantar (foot) loading pattern that’s produced when the foot rolls heel-to-toe is directly involved in pushing the foot into extreme positions which in turn was found to be directly involved in causing knee injury! Read more here!
