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Old 04-27-2006, 10:20 PM
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Hinge vs. Swivel BM#146
Originally Posted by Ringer

cdog.. your hands are attached to your forearms by the wrist. Since the hand
cannot rotate independent of the arm, they must rotate because of the
forearm's rotation.

Take notice.. wherever your forearm is in alignment to, the clubface is also.
Try rotating your forearms.. and see what happens. But you can bend, or cock
your hand and the clubface will still align with the forearm. All of this of
course will be relative to the grip on the club... the same as it would be if
the discussion was on the back of the left wrist.

Now.. I am not saying that the clubface does not align with the back of the
left wrist... but what I am saying is that the rotation of the clubface
cannot occur by the hands alone... in fact the hand cannot rotate the club at
all (unless you twirl it in your fingers). The only appendage capable of
independent rotation are the arms. The hand cannot rotate without the
rotation of the forearm or upper arm. It's bio-mechanical. And since the only
way to rotate the clubface is by rotating the hand, thusly it must be done by
the arm.

All that being said.. the mind can be focused on the hands as accomplishing
the task.. but it is inaccurate to say the hands do any of the actual work.

The LOFT on the club can be altered by the hands.. and the clubs position
along the arc can be altered by the hands. It can even be thrown off the arc
by the hands (cocking/uncocking)... but the leading edge of the blade is
soley effected by the rotation of the forearms.


I think I've fairly well exhausted my point.



Ringer,

There is no argument here and hence no point for debate.

The Flat Left Wrist control of the Club has two distinct Actions. One is a Hinge
Action
(Clubface Control) and the other is a Swivel Action
(Clubhead Control). Regarding the Hinge Action, Homer Kelley states
clearly in 2-G that "'Roll' is actually imparted by the turning torso
and/or the orbiting arms." Regarding the Swivel Action, he states
that it is a "true rotation of the Hands into Impact alignment by
Accumulator #3
." Accumulator #3, of course, is the Left Arm and
Club. For the text-challenged among us, he even drew a Swivel Joint in
the Left Arm in the Golfer's Flail (Sketch 2-K #4 and #5).

No, Homer's position was not that the Hands originate the
Motions of the Clubface (Hinge Action) and the Clubhead (Swivel Action), only
that they control them. In fact, he said exactly that in 2-M-3:

"The Hands are strong, educated, adjustable Clamps attaching the Club to
the Arms for control of the Clubface alignments."

"So, the only absolutely essential muscular contribution of the Wrists
is 'holding on.'

Next 'Anti-TGM' topic for debate, please.
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