Kelvin wrote this article 2009, its about chi line.
Its about rotational forces, or body weight for power.
The above image show Micelle wie a promised golfer who cant win due to going to Leadbetter (cursed) academy.
The left image is her 2004 and the the right is 2007. 2004 she hit it long and could compete with men.
However, images don’t tell the story. Nelson, Austin don’t really follow that chi line, still hit it long. Hans spine angle is also at a different chi line if you like.
Its like anything, we cant use a image to determine what is happening and why its happens.
Yes you can check a few things.
Where does speed and power come from?
You swing faster (its not a secret)
How do you swing faster? (that might be one secret though)
You apply more force to create more power trough torque around a leverage pivotal point.
How to I create more force in the swing?
The distance the object travels, the strength you are able to support the swing momentum at the impact. Its done trough torque or rotational axis at an angle.
Ben Hogan called it a plane of glass, it wasn’t a plane and none have seen it since then, what Hogan was talking about was a sensation he had in the down swing and every since then he confused the whole golf world. He talked about his own sensation which felt like a plane (Angle) not angels.
But you cant do that plane or angle with position geometry swing golf like Foley teaches.
Once you find the angle, you can swing as fast as you like or like this guy did it,
Now if you had my old swing, then its not easy to swing fast. I could hit a driver 180 yards now and then as I had a over the top across action.
I also as I went trough various swing changes was hitting the ball way long 2011 in sprain and straight but I wasn’t hitting it Hans long. I hit my 9i 170plus yards carry during spring then and even if good and long I still wasn’t happy.
Now I am.
The chi line is a concept about rotational force the more speed around your own body a skater moves in their arms the more speed and force can you create. The golf swing for a tour pro is rotational in nature. Mike Austin did it slightly different and that is why you see him with that spine angle in spite of the chi line concept and he hit it long.
A power hitter today are not using torque to their best ability and they often loose accuracy. Daly, Bubba, etc…
The problem with a chi line is when we apply it for a different swing system like mine or Austin’s. I find the value for a tour pro but if it don’t match Austin or Hans, then what’s going on?
The upper image is more recent than the lower image. We see an increased spine angle. Its due to Hans can now contain his power better, he don’t roll over his left foot and can now swing as fast he like. Once you have enough speed, well what else?
Consistency and accuracy.
Chi line is trying to answer why the C7 isn’t the swing center. Where the swing axis is in a swing, and its inside right thigh for a righty golfer.
yes right inside thigh.
Once you understand that your also swinging on an angle, on the glass and the compound pivot and speed and spine angle is all there.
The normal thing is then how do I find out how to make that happen to create the proper kinetic chain so I can swing and just play golf?
That can take some time.
Simon left image new.
In the old one an arm swing.
Out of sync and flip release.
The new one sync with pivot and arms.
You also see a better angle between left leg and spine.
I don’t like to use concept’s much, C7? its the inside right thigh for me. Spine angle is with how the force sync the pivot with impact left leg and spine angle.
To wide stance.
right side pelvis has rotated and even if she looks Austin here, she isn’t. Still images lie.
She runs out of space at the hitting zone, left side goes up as it has no where to go. Leads to timing issues aka consistency.
Its shown here why, her hips are level just before impact. No power, timing dependent.
When she hit it long, her pelvis had an angle. (Big clue btw) Wie wants to do her old swing, its evident in her swing motion but now she cant due to her swing change makes her have less power and create timing issues instead of better consistency.