In traditional running shoes, the ankle is less plantar-flexed each time the foot hits the ground. In other words, your running shoes, thought to protect you from the impact forces of running, can actually increase the impact forces (1) (figure 12.1).įigure 12.1 Running in conventional shoes is associated with a dramatic impact transient-a powerfully increasing impact force moving up the leg during the first 50 milliseconds of stance. The magnitude of the impact transient is three times greater in traditional running shoes, compared with unshod running. In traditional running shoes, a runner maximizes the “impact transient” (an abrupt collision force acting on the leg during the first 50 milliseconds of stance after the foot hits the ground), compared with barefoot running or running in minimal shoes. Compared with sauntering out the door barefooted or in minimal running shoes, traditional running shoes with elevated, cushioned heels steer you toward the following gait patterns. That's because research reveals that running shoes have a profound effect on form. ![]() When you wake up in the morning and slip into your running shoes in preparation for a run, you have unknowingly changed your running form in a significant way without even taking your first step out the door. Running shoes and form This is an excerpt from Running Form by Owen Anderson.
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