8. Avoid Side-To-Side Motions
According to Brendan Cournane, a USATF and RRCA-certified running coach, in an article for Active.com, “many runners spend a great deal of energy twisting their upper bodies, fighting the efforts of the lower body. Think of the zipper line on a jacket running down the center of your torso. If your hands cross that zipper line, the shoulders and the top half of the body usually follow the hands. The torque created from the waist up is energy that could be used to run faster.”
