[Golfie McG]

Golfie,

The source of my study on clubhead speed and power comes from Mark Evershed's book....The Golf Solution....

Here is an excerpt from that study....

If you still believe that the body creates the speed and power in your golf swing, and pervious pages have not yet changed your mind, You can stilll prove it to yourself by following the directions below. You will need a device to measure your clubhead speed.


S1 After warming up, measure the clubhead speed of your driver using your normal swing and averaging the three highest readings. This figure respresents 100% of your speed and energy potential.

S2 With your feet together, swing and measure your clubhead speed. (This eliminates the contribution of the body).

S3 From your knees, swing your driver and again measure your clubhead speed (This eliminates the body and the sequence (vertical drop).


S4 Finally, while still on your knees, swing the club with your hands, wrists, and forearms stiff or immobilized. The clubshaft should point at the middle of your chest during the entire swing. (This eliminates the body, vertical drop and hands, and measures only the contribution of the arm swing).


Here are Mark Eversheds results....someone who is accomplished golfer....

Quiet Body Clubhead velocity Contribution 4.6%
Clubhead Power Contribution 8.9%

Educated Hands Clubhead velocity Contribution 60.0%
Clubhead Power Contribution 58.9%

On-Plane Arms Clubhead velocity Contribution 19.1%
Clubhead Power Contribution 3.6%

Sequence (Vertical Drop) Clubhead velocity Contribution 16.3%
Clubhead Power Contribution 28.6%


The above exercise is in Mark's book....if you do the above procedures and send in your inputs Mark will mail back your results...


Mark's golf swing is based on an arm swing (right arm swing)....


The vertical drop term means, the start of the swing is a dropping action of the arms....

Quiet Body term means....the body is responding to the action of the swinging hands and arms.....the right forearm is supplying the arm acceleration.

DG

DG,


This doesn't seem terribly scientific or reasonable. For instance it may be that S2 tests a player’s balance or the contribution of lateral movement in the swing but eliminates the contribution of the body? Nope.

I suspect that he may have an agenda here.

Golfie