Debunking Golf Myths 1 - The X-Factor
ALL HUMAN MOVEMENT takes place when muscles act across joints to move skeletal segments (ie bones). A simple example - the bicep (brachii) muscle lies on either end of your elbow. When (via signals from the brain) the bicep muscles contract or shorten, they pull the forearm bones towards the upper arm bone, creating a bend in your elbow joint. Is the golf swing a HUMAN MOVEMENT? YES. Then the main thing we need to understand is which muscles act to move joints in which directions. EVERYTHING ELSE (swing plane, across the line shaft, open clubface - even the gripping of the club’s handle) can be boiled down to what HUMAN MOVEMENT caused the club to get into which position - it’s not some magical fairy wand that can move about all by itself! In 1992, George Peper, longtime editor of Golf Magazine revealed The X-Factor to a golf world hungry for ball-striking improvement, and said, “Millions of words have been written about how to hit a golf ball. It’s rare, therefore, to come across a completely original contribution to the wisdom of instruction, but that is exactly what Jim McLean has produced in the X-factor. With the assistance of Sportsense swing computers, McLean has done beyond mere theory and shown actual proof of a more powerful way to swing.” [see http://www.youtube.com/watch?v=DE8ODf3IeAU] What is the X-Factor? In the words of discoverer Jim McLean (according to the video link pasted above) it is the ‘gap’ or ‘differential’ between hip and shoulder turn at the top of the backswing. It ‘creates explosion going forward’. The discovery was based on the fact that the 5 longest hitters on the PGA Tour have a much greater X-factor than the 5 shortest hitters. The golf world fell all over itself trying to facilitate this concept by one of golf’s most famous teachers. The famous fitness people began to talk of thoracic-lumbar dis-association, and how they could help golfers to achieve it. Tons of research dollars were spent studying the X-Factor. To read about the numbers of scientists who have conducted research on the subject, and finally Professor Kwon’s (head-biomechanist at Texas Woman’s University) study (and debunking) of the subject, see http://50.87.35.246/~chriscq7/wp-content/uploads/2013/05/X-Factor-paper.pdf Why did no-one assess it based on simple BODY MOVEMENT capabilities and basic physics principles first? IS the movement a true differential between hips and shoulders? Is it desirable for golfers to make this move from both an efficiency and injury stand-point? Could anything else be used instead? Did anyone wonder whether the X-factor was correlation or causation? In other words, was it a mere co-incidence that those long hitters hit the ball much further (for instance that they had better over-all flexibility) or was the X-factor the CAUSE of the longer hitting. Does anyone care that the movements the PGA Tour players make are not necessarily the most efficient HUMAN MOVEMENTS to make, just a serendipitous way their brains and bodies have found to arrive at the ball correctly despite non-ideal backswing joint placements? YOU can get into X-FACTOR position as easily as John Daly who has the biggest X-factor, as follows (although you may not wish to by the end of this article):- Set-up in your normal address position
- bend at the lead (left, for a right-handed golfer) knee, hip and shoulder - voila you’re in an ‘X-Factor‘ position. When the lead shoulder drops forwards, the trail shoulder has to go backwards, and that is being mistaken for any rotation. (In other words it is nothing but a lateral flexion of lead-side trunk, along with hip and knee flexion and ankle extension.)