“The body is all connected and balanced on top of itself: head, shoulders, hips, knees, ankles, feet. If you throw off that balance at the top, the supporting structures need to work harder to keep your body upright before they begin the task of pushing you forward.” – Jonathan Beverly
Try this excellent mobility move to open up your shoulders and improve your shoulder range of motion so you can move your arms more effectively while running.
Article courtesy of Brett Williams for Runner’s World