ABSOLUTE BALANCE The following illustration shows the Center of Force (COF) in both the left and right feet. The circled red box in the left foot and the circled green box in the right foot illustrate the COF in each foot. The COF is where the average of all the weight or "force" is distributed in each foot. This illustration is a screen shot of the balance mat in our Biomechanics Lab at Arroyo Trabuco Golf Club.
Our research shows that the line connecting the two points of COF is the path the putter will track 100% of the time and the path the club will start on 100% of the time. ABSOLUTE BALANCE is set when the COF is just behind the balls of the feet and just forward of the center of the arches and the two points of COF are a straight line as shown in the screen shot from our balance mat below. We refer to this line connecting the Center of Force in both feet as the Line of Force.
The following image shows an Open Line of Force
A player with an Open Line of Force as shown here will have more weight loaded on the right side of their body in their set up to the ball. They will have restriction in their back swing and they will be steep into the ball in their downswing in an "over the top" motion. Their divots will be deep and their shot pattern will be a pull left or a slice or fade / cut. The cause of this Open Line of Force is either in stance width, grip size or both. A person with this line of force will have low back pain, often on the left side and they are prone to shoulder injuries.
If you would like to experience this line of force, stand up, find a stance width where, when you bend both knees they protrude the same. Now increase the knee bend in your right knee and you will feel your weight move toward the toes of your right foot and toward the heel of your left. If you let your arms swing from that position you will note the outside-in path this creates. This path will be true, putter through driver.
The following screen shot is an illustration of a player with a Closed Line of Force
A player with a Closed Line of Force as shown here has more weight on their left side at address. This balance position sets up a lateral motion in their backswing. They will over-rotate in the backswing and feel "stuck" in the downswing. They will also have an overuse of their hands through impact. Their miss will be "thin" due to the inside shallow approach to the ball and a straight right ball flight that they might interpret as a push. A hook would be another pattern of miss as their arms and hands release prematurely when their hips stop in the downswing. They have a power leak due to this abrupt loss of core motion in the downswing. Their injuries include low back pain (frequently on the right side) and shoulder, elbow and wrists pain.
The cause of this Closed Line of Force is either in stance width, grip size or both. If you would like to experience this line of force, stand up, find a stance width where, when you bend both knees they protrude the same. Now increase the knee bend in your left knee and you will feel your weight move toward the toes of your left foot and toward the heel of your right. If you let your arms swing from that position you will note the inside-out path this creates. This path will be true, putter through driver.
Dr. Wright's research on Center of Force and Line of Force is cutting edge technology. The goal for every student in his lessons and golf schools is Absolute Balance where power, consistency and a lower probability of injury reside. When you are in Absolute Balance visual perception of lines is accurate. When your Line of Force is one of imbalance, your perception of lines is inaccurate.
Dr. Wright uses the balance mat in all of his lessons and golf schools to illustrate changes in balance that are related to clubface aim, path, posture, alignment, stance width, grip size and grip. These discoveries were made by Dr. Wright during his 3 year biomehcanics research project at Centinela Hospital as shown in the videos in the Research section.