[Jeff]

I have produced a 2 minute swing video lesson on "what powers a swinger's golf swing". If you understand this simple double pendulum swing model demonstration, then you will understand what powers the golf swing in a swinger's action.

Consider what I have demonstrated. One powers the golf swing by moving the left arm (central arm) in a circular manner. That "cause" produces an "effect". The "effect" is the circular motion of the left wrist/hand (peripheral hinge joint) in space. That "effect" becomes a "causal agent" with respect to releasing the club ("effect"). The circular movement of the left wrist/hand in space causes the release of the club.

If you understand what I have stated, there are only two possible causative agents in this sequence.

1) The left arm moves in a circular manner (due to the release of PA#4).

It produces an effect - the circular motion of the left wrist/hand in space.

2) The left wrist/hand unit moves in a circular manner in space.

It produces an effect - the release of the club.

The club release phenomenon is an "effect" and not a cause. I therefore think that it is nonsensical to state that an "effect" drives the golf club (via the lag pressure point at PP#3).

Note that I don't need to use the word centripetal or centrifugal in my description of "how the golf swing is powered" in a swinger's action.

I certainly think that it is nonsensical to believe that a centripetal force is necessary to "conserve speed and store energy".

Jeff.