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Old 04-27-2006, 02:33 PM
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Shoulder Motion BM#38
Originally Posted by EdZ


Originally Posted by Yoda


Originally Posted by MizunoJoe

6b1d,


Thanks for the summary - I was pretty sure Yoda would get you into the
4-barrel HITTING procedure with the driving right shoulder. [Bold by
Yoda.]




To accelerate the Clubhead from the Top, Swingers use Centrifugal Throwout
Action and Hitters use Muscular Drive-Out Action.
Accordingly, each uses the Right Shoulder in a very different way. Swingers
use it to actively 'drive,' or accelerate, the essentially inert Left
Arm (the #4 Power Accumulator) into Impact. Hitters use it to take up the
initial slack during the Start Down and then as the 'equal and opposite
force' backstop required to accelerate their Driving Right Arm
(the #1 Power Accumulator) into Impact.


The Swinger's active Right Shoulder accelerates the Left Arm,
and Centrifugal Force and its Throw-Out Action then powers the
Clubhead. The Right Arm remains passive -- except for its Right Triceps
Extensor Action and the #3 Pressure Point sensing and directing the Clubhead
Lag -- and thus the Stroke remains Three-Barrel. In contrast, the Hitter's
active Right Shoulder serves as the 'launching pad' for the Right
Arm and its Muscular Drive-out Action that
powers the Clubhead. Since the Right Arm then drives the entire Primary Lever
Assembly (including the Left Arm), the Full-Power Hitting
Stroke can be properly classified as Four-Barrel.






In the case of the swinger, that sounds more like a body control pivot rather
than hands control to me?





In both procedures, the Body follows the commands of the Hands, not vice
versa. In everyday life, that's the way things work.

As an example, raise your hand. Did it go up in the air? Of course it did,
and the reason it went up in the air is because you gave it an assignment.
Now, how did the hand get up in the air? The shoulder lifted it,
that's how. But...your hand controlled the motion, not the
shoulder.


The same is true with Hand Controlled Pivots, both Hitting and Swinging. When
I Hit, I tell my Hands to Drive the Club Out. When I Swing, I tell my
Hands to Throw the Club Out. My trained Body -- including the Right
Shoulder -- accomodates these distinctly different Actions perfectly. I don't
give the Pivot a second thought; which, by the way, is why you find no Pivot
Components listed in the Mechanical Checklist of 12-3-0.
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