Golf Swing: Hip Rotation

A study at Standford University  has  clarify some unresolved questions about golf-swing biomechanics.  One question that always comes from novice golfers is ” what starts the downswing?”.  Practitioner and Pro’s have had different answers. Some would say the hands, or others would say the shoulders or the lower body. This study compared top ranked players to novice players in their swing biomechanics.  It was evident from the study that  all of the higher ranked player produced significantly higher club head speed, which was attributed to less than 10 percent deviation from the optimal swing mechanics.  All of these player initiated their downswing and prime force production through proper hip initiation and rotation.