The Basic Steps to Perfect Golf
Masterfiles

Inertia Effect. (Changed - 01/01/2011)


During the back swing movement, the left shoulder controls the rotational movement of the compact upper body unit as it rotates around the central core of the spine thus pushing the club head away from the ball - therefore there is no inertia effect upon the arms at all.

However because the arms are totally passive to the movement of the shoulders and therefore regardless of how tightly the elbows are held together, as soon as the shoulders begin to rotate into the down swing movement the passive arms/golf club will immediately begin to lag begin the rotational movement of the shoulders.

For example, as you begin to aggressively rotate the hips in an anti-clockwise motion thus literally forcing the shoulders to rotate around the central core of the spine, there will be a an immediate lagging effect upon the arms.

Therefore it is the "inertia effect" which enables the very good golfer to achieve the maximum velocity of the club head as it moves through the contact area.

It is important to understand that as long as you keep the arms passive to the movement of the shoulders, the "inertia effect" will always be present.


Club Head.

This "inertia effect" becomes even more important when you apply the principle to the actual club head.

When you are using the shorter irons such as the pitching wedge or the sand iron, the delay caused by the "inertia effect" before the club head catches up with the hands at the impact position is very small, so only a small adjustment is required in order to correctly time the strike.

However as you start to use longer irons, such as the five or six irons, the shafts also become longer, which means that due to the "inertia effect", the delay time increases even further before the club head can catch up with the hands at the impact position.

Finally, when you are using the longest club, the driver, the delay caused by the "inertia effect" will have increased even further before the club head can catch up with the hands at the impact position.

So it is very important when making the down swing, that as the club shafts become longer, you must take into consideration the "inertia effect" in order to compensate for the extended time delay.


 

 

 

 

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