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-   -   Extensor action (http://www.lynnblakegolf.com/forum/showthread.php?t=6186)

Jeff 10-18-2008 12:08 PM

Extensor action
 
I am presently working my way through some of Yoda's old posts.

He stated-: "Per6-B-1-D, Extensor Action is always a below-plane Pull. This Pull straightens ideally, the entire Primary Lever Assembly (both the Left Arm and Clubshaft / 6-A-2) through Pressure Point #3. However, with the less skillful player, this #3 Pressure Point Pull may induce Clubhead Throwaway. In which case, the Extensor Action should be limited to astraightening of the Left Arm only (by Pulling on the Left Thumb through Pressure Point #1). In either event, the Extensor Action is always a Pulling Action, never a Pushing Action.

You can't Push a piece of string into a straight line."

------------------------------------------------

I cannot understand this position. It is my understanding that the right hand is pushing on the left thumb (PP#1 point) in such a direction (directionally along the longitudinal axis of the left arm) so that it extends the left arm. The left arm is pulled straight, but it pulled straight by a
push-action exerted by the right arm/hand unit.

I also think that it is possible to push a string (which is lying on a tabletop) into a straight line - by using the tip of a finger to push against one end of the string (in a straight line direction towards a distant target point). This explanation is identical to the idea of a horse pushing against a harness in order to pull a cart in a straight line direction.

Jeff.

Yoda 10-18-2008 12:20 PM

Pushing To Pull
 
Quote:

Originally Posted by Jeff (Post 56749)

I cannot understand this position. It is my understanding that the right hand is pushing on the left thumb (PP#1 point) in such a direction (directionally along the longitudinal axis of the left arm) so that it extends the left arm. The left arm is pulled straight, but it pulled straight by a
push-action exerted by the right arm/hand unit.

I also think that it is possible to push a string (which is lying on a tabletop) into a straight line - by using the tip of a finger to push against one end of the string (in a straight line direction towards a distant target point). This explanation is identical to the idea of a horse pushing against a harness in order to pull a cart in a straight line direction.

We're saying the same thing, Jeff: You stretch (pull) the left arm into a straight line by a right triceps push against the left hand thumb (just as if the left arm was merely a piece of string).

Regarding pushing a string into a straight line . . .

I'll pay to see that!

:laughing9

Jeff 10-18-2008 12:34 PM

Yoda

Regarding the problem- issue of "pushing a string into a straight line" consider the following thought-experiment.

Imagine a piece of string lying on a tabletop. Then imagine putting a pin into one end of the string to keep its position static. One can then straighten that string by pulling on the other end until the string is straight. Alternatively, one can place one's fingernail a few miilimetres from the other end of the string and push the string straight by pushing that string end against the tabletop in a straight line direction away from the pin.

Jeff.

Yoda 10-18-2008 01:40 PM

Word Games
 
Quote:

Originally Posted by Jeff (Post 56753)
Yoda

Regarding the problem- issue of "pushing a string into a straight line" consider the following thought-experiment.

Imagine a piece of string lying on a tabletop. Then imagine putting a pin into one end of the string to keep its position static. One can then straighten that string by pulling on the other end until the string is straight. Alternatively, one can place one's fingernail a few miilimetres from the other end of the string and push the string straight by pushing that string end against the tabletop in a straight line direction away from the pin.

C'mon, Jeff,

Both motions in your examples are called pulling the string!

Pull Definition:
To exert force or influence on so as to cause to move toward or after the source of the force; drag, tug, draw, attract, etc.
:)

Jeff 10-18-2008 06:21 PM

Yoda - now I can understand why you describe the right arm's pushing action at PP#1 as a pulling action.

I have always understood pull and push differently. I think of a horse pushing against his harness so that the cart can be pulled by the horse (via the harness). However, I can understand how somebody else can combine these two factual phenomena into a single phenomenon and simply state that the horse is pulling the cart.

Jeff.

pistol 10-21-2008 10:59 AM

Quote:

Originally Posted by Yoda (Post 56756)
C'mon, Jeff,

Both motions in your examples are called pulling the string!

Pull Definition:
To exert force or influence on so as to cause to move toward or after the source of the force; drag, tug, draw, attract, etc.
:)

An all time classic from Dr Jeff. Been laughing for 10 mins . Keep em coming

Jeff 10-21-2008 11:08 AM

Pistol - typical post! Typically devoid of intellectual/intelligent content, and typically reflective of your personal animus.

What more can one expect of you?

Jeff.

okie 10-21-2008 11:36 AM

C'mon guys!

It is tough to pull for people so pushy! :laughing9

pistol 10-21-2008 11:58 AM

Quote:

Originally Posted by Jeff (Post 56866)
Pistol - typical post! Typically devoid of intellectual/intelligent content, and typically reflective of your personal animus.

What more can one expect of you?

Jeff.

Jeff stick with pulling on the left thumb through pressure point #1:laughing9

Jeff 10-21-2008 01:44 PM

Pistol

You are free to believe that a right arm swinger swinger pulls on his PP#1 with his right palm while I will continue to believe that the right palm pushes on PP#1 and causes the left hand to move down-and-out-and forwards.

Here is another quote by Yoda referring to the right shoulder thrust that initiates the downswing pivot action in a swinger.

----------------------------------------

"The Push of the Right Shoulder accelerates the Swinger's Left Arm and
causes it to Pull the Hands and Club (6-B-4-0). The direction of that
Pull is toward its source (the Pushing Right Shoulder). Therefore, when you
Turn your Right Shoulder Down Plane (toward the Ball), i.e., 10-13-D #3 per
2-H, 2-L and 6-E-2-1, that is the direction taken by your Left Arm and Club
-- the Golfer's Flail (2-K).

This Push -- a Thrusting Force -- is much misunderstood, both
Mechanically and Kinesthetically. All that is needed to create this steady,
driving force or pressure is a positive motion that initiates and
sustains the Pull of Centrifugal Force. Its Execution need not -- in
fact, should not -- be quick or jerky (3-F-6). And any violent action
is not only unnecessary, it is counterproductive (due to its Throwaway
tendencies).

Remember, every Pull requires a Push. A horse cannot pull a wagon"

--------------------------------------------

Now if you want to call the right shoulder thrust action a pull action because it ultimately causes the left arm to pull the hands/club, then you are free to do so. However, I perceive it as a push action.

You can also freely believe that a horse pulls the cart, but I choose to believe that the horse pushes against the harness, and that the harness assembly translates that push-action into a pull-action with reference to the cart.

You are also free to believe that pushing (with the pushing finger being behind the point of contact with the string) against the end of a string to straighten it is exactly equivalent to pulling the string (with the pulling agent being in front of the point of contact with the string). However, your personal opinion doesn't become legitimized (become more scientifically "true") by adopting a mocking tone.

Jeff.


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