Post by imperfectgolfer on Aug 2, 2013 15:53:17 GMT -5
See this latest KM-article - www.aroundhawaii.com/lifestyle/health_and_fitness/2013-08-the-backswing-plane-survey-of-tour-professionals.html
KM is trying to prove that a steeper left arm angle/plane in the backswng is biomechanically advantageous - but he provides ZERO/no biomechanical reasoning/explanations. He simply posts mutiple images of different golfers and infers that a steeper left arm angle in the backswing is biomechanically better - based on the number of PGA tour wins by golfers in the steeper left arm angle category. However, that's a BS argument! It doesn't take into account many confounding variables eg. individual talent; short game/putting skills; confidence/mental skills and and course management skills. KM didn't provide a single explanatory argument in that article to show why a steeper left arm angle is advantageous.
He only made a single comment re: biomechanics when he claimed that "The one danger of the flat backswing is that the more the butt end of the shaft gets over your right elbow, the greater the chance that you will externally rotate the right shoulder maximally. This will trigger a stretch shorten cycle to fire the right shoulder internally which is the primary cause of the over the top swings in amateurs"
I think that's a nonsensical argument! A swinger uses the RFFW to support the LAFW at the end-backswing position, and if a golfer wants to get the right forearm vertical to the ground at the end-backswing position to best support the LAFW then he will have to externally rotate his right humerus more - as seen in Tiger Woods and Adam Scott's swings.
However, that more vertical position of their right forearm doesn't induce a stretch-shorten cycle and it doesn't induce an OTT action.
Jeff.
KM is trying to prove that a steeper left arm angle/plane in the backswng is biomechanically advantageous - but he provides ZERO/no biomechanical reasoning/explanations. He simply posts mutiple images of different golfers and infers that a steeper left arm angle in the backswing is biomechanically better - based on the number of PGA tour wins by golfers in the steeper left arm angle category. However, that's a BS argument! It doesn't take into account many confounding variables eg. individual talent; short game/putting skills; confidence/mental skills and and course management skills. KM didn't provide a single explanatory argument in that article to show why a steeper left arm angle is advantageous.
He only made a single comment re: biomechanics when he claimed that "The one danger of the flat backswing is that the more the butt end of the shaft gets over your right elbow, the greater the chance that you will externally rotate the right shoulder maximally. This will trigger a stretch shorten cycle to fire the right shoulder internally which is the primary cause of the over the top swings in amateurs"
I think that's a nonsensical argument! A swinger uses the RFFW to support the LAFW at the end-backswing position, and if a golfer wants to get the right forearm vertical to the ground at the end-backswing position to best support the LAFW then he will have to externally rotate his right humerus more - as seen in Tiger Woods and Adam Scott's swings.
However, that more vertical position of their right forearm doesn't induce a stretch-shorten cycle and it doesn't induce an OTT action.
Jeff.