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Old 01-27-2006, 12:46 AM
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Mike O Mike O is offline
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Reaction Forces
Originally Posted by bts
The feet are the movable parts of the swinger being in contact with the stationary ground. It seems that the friction between the shoes and the ground enables the counter force (against the force exerted by the pivot through the feet) from the ground to be transferred through the feet all the way up through the pivot to the shoulders, which drive the arms.

I'm not sure if making a swing is possible when standing on a rotary office chair, which takes that friction out of play.

So, it seems that you want to pull or push against something with the hands, yet the body moves from the ground up first.
"All non-symetrical body movements are reflected in reaction forces- that is, forces of support from the ground on which one stands." Sven Carlsoo- Dept of Anatomy- Stockholm Sweden

Because of the rotary nature of the golf swing- you've got tremendous reaction forces going on- so I understand that issue, but I guess I'm unsure of the essence of your post- could you clarify. Specifically, these two sections:


1) "from the ground to be transferred through the feet all the way up through the pivot to the shoulders, which drive the arms"- If you were to end the first paragraph before this section- I follow it completely- but this last section throws me and I just need you to clarify exactly what your saying.

2) "it seems that you want to pull or push against something with the hands, yet the body moves from the ground up first"

By clarifying the above two sections- I may be able to understand the third thing I was uncertain of- but just in case, I'll ask it here ahead of time- Did you disagree with something in my previous post? I think so, but was not 100% sure.

Thanks for the feedback in advance.

Mike O.
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