The Golfing Machine defines four power accumulators and their corresponding pressure points. These "Power Accumulators" are part of something called the "Power Package" and are numbered from 1 to 4. In order, they are the bent right arm (right arm folding and straightening), the cocked left wrist (cocking and uncocking), the angle between the clubshaft and left forearm (turning and rolling of the left wrist/forearm), and the angle formed by the left arm and the left shoulder (angle changing from acute to "less acute").
These Power Accumulators are out-of-line conditions of the Power Package (* see definition at bottom of post) Components. Out-of-line simply means "not in a straight line from end to end." Releasing them to seek their in-line condition releases their stored potential.
So... What's the point of all this?
... We've now believe there is a "5th" Power Accumulator...
After ongoing discussion, research, and classification we (the Golf Evolution team) believe that there is a fifth power accumulator: the bending (to the individual's "maximum") and releasing of the right wrist (bending in this case defined as knuckles towards top of forearm).
FIRST...let me state, right here and now, that we are IN NO WAY meaning to say that we believe the right forearm flying wedge (as shown in yellow on the photo of Vijay Singh below) should no longer be intact at impact... we ABSOLUTELY believe it should be and it is EXTREMELY IMPORTANT. What we have found is that the right wrist goes from a "maximum" bend to less than "maximum" bend by impact. It DOES NOT simply maintain its condition. It is this fact and the resultant power delivered by this motion that makes it a Power Accumulator in our minds. This post is just some of the detail and illustration we have at this time. We will be compiling further "layers" to add detail as we go.
The Case for the "5th" Power Accumulator
The illustrations provided here and, ongoing, in this thread will show (and prove) that there is a bending (loading) throughout the backstroke and in some cases during the downstroke. This bending reaches a "maximum" point in each stroke and is then less than the maximum at impact. It is through the loading, storage, delivery, and "release" that power is generated. Note the photos here:
(Click the photos to see them in a larger window.)
Note: Flying wedge intact as shown in yellow in photo of Vijay Singh below:
Is this "power accumulator" seen in other sports or activities? Yes, but honestly I'm not always one to like examples in other sports/activities. These next couple photos, do however, clearly illustrate the bending and releasing at the back of the right wrist to create power. I have chosen a submarine style pitcher and the swinging of a hammer to drive in a nail (note how much the right forearm stays on its plane in the images with the hammer)
I realize that that it is very difficult to be exact with many of the measurements within the illustrations above. I do believe, however, that they are certainly close enough to make the point and demonstrate that the right wrist is bending and in the process of decreasing that bend.
To further demonstrate how PA "5" works here is an exercise to try: Next time you are out hitting balls (you will even get the point if you do this in a practice swing at home) attempt hitting shots "without" using PA "5" - to do this make a backswing and downswing through to finish making a CONSCIOUS effort to NEVER change the bend at the back of the right wrist. I think you will find it feels much "weaker' than you normal stroke. You will really need to make an effort to do this as it will be instinctual to increase the bend in the right wrist (to load and store power while getting ready to "release" it).
*** PLEASE, PLEASE, AGAIN... do not read this thread and believe that we are saying that the handle should not be forward and the right wrist should not be bent at impact. We were honestly quite surprised to see the measurements continue to result in the same finding...that the right wrist is going from a loaded to "released" (less than maximized bend) position during the impact interval.
Finally... this guy surely knew something and I just LOVE this example of PA "5" fully loaded:
If you made it this far...thanks for taking the time!
Dave (with plenty of input from Erik and James)
P.S. We realize we are not the first or only ones to state that a bend at the right wrist is a component in the golf swing. The difference here is that we are classifying it as a power accumulator. We are saying that it reaches a maximum bend (loads) and that bend is reduced during the impact interval to generate power. This is posted on a forum for a reason...break this thought process if you can. That's what it is all about! We're putting this out there to be discussed and debated.
* P.P.S. Power Package definition: The Power Package concept isolates and defines the functions of the Hands and Arms in propelling the Clubhead into Impact. The Power Package consists of the Arms and the Club (basically a triangle with the sides being the STRAIGHT LEFT ARM, THE SHOULDERS and A LINE FROM THE RIGHT SHOULDER TO THE HANDS). There is no Stroke that does not include a Power Package Assembly and the five-step sequence of operation - Accumulation, Load, Storage, Delivery, and Release.
Edited by david_wedzik - 3/12/11 at 1:01pm