Exercise – Explanation of the Hamstrings and their function in the golf swing. Tight hamstrings and their corresponding muscles play a MAJOR role in the golf swing! These muscles affect your lower body in a big way – AND, the Lower body dictates to the upper body during the swing. If your Hammies and lower body muscles aren't functional, your lower body won’t be able to stabilize and allow the upper body to coil effectively against it. This video will explain the role of the Hammies as well as test them to determine where you’re at’. Let me know how you do by leaving your comment below.