I was thinking about the golf swing. Yes it seems that I do this a lot. As a matter of fact, sometimes I search the internet for swings to watch. I enjoy watching other swing motions of both amateurs and professionals.
The other day I watched Ricky Fowler practicing with the K-Vest system. I found it interesting how he was practicing by pausing at the top of the backswing. This is a difficult drill for many reasons because it forces you to “start” the downing with your body not your hands. I think it is a great drill but it is very difficult.
I have been digging deeply into backswing movement. From the data I have compiled there is a direct correlation between backswing “separation” and downswing separation. Here is an example of an animation from my data where you can see three pictures of K-Angle.
K-Angle is the separation of upper body from lower body. Here are some screenshots of the animation from the data of student Jeff Turner.
You can see how the that the backswing motion creates a differential between the shoulders and the pelvis. This differential is utilized in the downswing where the pelvis can move before the torso.
It also must be noted that when the pelvis moves into the downswing it increases the tilt of the spine. This increase of tilt as you rotate is a key factor in creating lag. Lag is where the arms stay behind the rotation of the torso to produce speed.
To accomplish the ideal motion for creating separation and lag, you must move into your lead knee “before” you reach the top of the backswing. When you move into your flexed and stable knee your lower body moves rotates and moves forward. The upper body lags behind and you feel more tilted before your torso rotates and begins to come forward.
When the spine increases tilt and you rotate it feels like you are dropping the right shoulder as you rotate the torso. This rotation make the lead arm move up and right shoulder move down. The club then lags behind.
This is exactly what Moe was demonstrating when he would show this exaggeration of the move: