left arm rotation on backswing?
- Thread starter TYORKE1
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It needs to be posted somewhere on the internet like a Yahoo/Geo file manger, after its gets its own url, stick the url address between the brackets below:
[img]
because these brackets are alive I can't show them compelete. The last bracket needs to have a back slash [/ then img and finish with the bracket.
This works on most forums and will show the picture in the post.
good luck. 6b
Thats the nice thing about machines, they're tangible! No illusions, nothing illusory about it. Look at a 3rd class lever. Fulcrum or pivot = left shoulder. If you can't explain it with tangibles, if you need imaginary dotted lines, its suspect. The radius from left shoulder to my left wrist never changes.
If I form a triangle between my hands and shoulders and call swing center, the "imaginary" straight line between my shoulders through the hands, shaft and clubhead. Why? In illustrations of levers they generally use a wooden plank or board as the lever. How effective would the lever be, if the lever was air? What is that gap between your hands and the point between your shoulders? Air... Why? When you can make a very effective lever and machine out of available body parts? No good reasons!
If I form a triangle between my hands and shoulders and call swing center, the "imaginary" straight line between my shoulders through the hands, shaft and clubhead. Why? In illustrations of levers they generally use a wooden plank or board as the lever. How effective would the lever be, if the lever was air? What is that gap between your hands and the point between your shoulders? Air... Why? When you can make a very effective lever and machine out of available body parts? No good reasons!
I don't reject that at all.. however in no way does the left shoulder DIVIDE the swing in any equal way making it's definition of CENTER a foolish one. The only way it could be achieved would be with Zero Pivot. EVERYTHING moves around the base of the neck... quite clearly defining it as the most logical "Center" of the swing. The left arm moves around it just as much as the right shoulder and right elbow do... but esspecially the hands and club moves around it. Since the right shoulder and right elbow do not move around the left shoulder, it cannot be viewed as the center of the swing.
I agree that the left arm moves in an arc around the shoulder, but it's a very SMALL amount. No more than taking the club at address and moving the club over your right shoulder. Just how much did your arm move? It shouldn't move any more than that during the entire golf swing either.
Now what about the right shoulder. How does it move around the left shoulder? Quite clearly in the book, the right shoulder MOVES the left one. For that matter what about the right elbow?
The blueprints of how to build a kite should not be in any way altered for the turbulence of the wind. Perhaps STRONGER material for harsher conditions, but the contstruction of the kite itself should not change. There is a specific reason for it's design, and when you alter the design, it no longer is as effective EXCEPT under the specific conditions you describe.
If I were to add a second crossbar, I may increase the strength of the kite, but I will also be reducing the amount of air passing to the fabric. But now we're starting to talk about kite building in a golf forum... the point I was making still stands. The circle is an imaginary one that doesn't influence the components of the swing. It may influence the mind, but not the components.
Not true Edz... the elbow STILL must move around the shoulder simply because it is attached to it. But that doesn't mean that they must remain on plane with each other... which is the differing oppinion here I believe.
I still don't see how the right arm, elbow, or shoulder move around the left shoulder.
The upper arm is closer to the swing center (left shoulder), so, in general it won't move as much as the lower arm, and even slower than the hands and more slower than the clubface. Straight physics. The further from center the faster the speed. This only confirms the obvious. Which is why I'm surprised this post has even resurfaced. Not that I mind clarifying.
cen·ter [sént#601;r]
n (plural cen·ters)
1. middle point or area: the middle point, area, or part of something that is the same distance from all edges or opposite sides
2. mathematics middle of circle or sphere: the interior point that is the same distance from all points on the circumference of a circle or the surface of a sphere or the vertices of a polygon
3. mathematics middle of line: the point on a line that is the same distance from both ends
4. pivotal point or axis: the point or line around which something rotates
5. physics point where force acts: the point at or through which a force is considered to act
Microsoft® Encarta® Reference Library 2003. © 1993-2002 Microsoft Corporation. All rights reserved.
Again, the only way you can claim that the left shoulder is the CENTER would be with Zero Body Pivot, or if you were to define the SWING as only the primary lever assmebly.
The base of the neck is the fulcrum of the shoulders which act as a Type 1 Lever system. The triangle of the power package rotates around that point making IT the center of the swing.
So now, i ask again since no one seems to be able to answer it but instead continue to argue other points... if the left shoulder is the center of the swing, why does the right shoulder not move around it? Or are you under the impression that the right shoulder is not part of the swing?
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