Go rory

[Michael Jacobs]

Ok let's discuss some of the topics being discussed in this thread...

The descriptions I am going to give will also give you a little more insight as to what to expect in my book EXAMINATION OF A GOLF SWING


1st Topic was asked by JDMAC
Originally Posted by Michael Jacobs
Notice the one piece movement of the downswing start between the arms and club!
I see and understand what you are saying by this and looking at McIlroy and another golfer who does this well, O'Hair, it appears the shoulder turn is way past 90* at the top. Maybe you need this extra turn to have some room to create this optimally? It seems the lag was better than previously when we tried to implement, but perhaps my 85* turn (guess) doesn't allow this move to be optimized? What do you think?


This a great question and one that is very important to understand. Here is a picture of some swings below and a description



To answer your question: having a bigger body movement does facilitate more of the 'one piece' initial phase of the downswing. In the pictures above you will see a little red dot placed on the shaft of the golf club. The red dot is an approximation I am making to locate the Center of Mass of the overall golf club. The center of mass of the golf club is moving very slowly in the transition from backswing to downswing and is also moving slowly in the initial one piece 1st phase of the downswing. From what I have seen and gathered, approximate speed of the center of mass in these stages 20-35 mph. When the club gains speed the center of mass starts to flee outwards and causes the angle between the left arm and club to expand.
Golfers who don't have the 'One Piece' stage present in their golf swings have a lot of premature speed in the club. Golf lure has referred to this as 'casting'
So the question is what facilitates the one piece movement and what avoids the center of mass from fleeing to early??

The answer is :
The more that the golfer recruits the muscles in the legs, backside, core, lumbar etc... the more they will be able to execute the 'One Piece' phase. So in a nutshell, what you are seeing in the club and wrists is a culmination of the entire body. this topic is heavily discussed in my book


Next topic:
sharkey35
Oh well
Tough to watch. Felt really bad for him. Class interview with Kostis tho. Mike, what are your thoughts on Charl?

That was the first time I ever watched Charl other than just a couple of swings on a video system. Very impressive, he is now a 'MASTER' of the game. Swing is a very orthodox model, looking forward to seeing what he does in the future


Next Topic:
spmurph
I envy his position at last parallel in the third video (0:57). Good stuff.

Great point! I would also like to show you some screen shots and a close up... You will see that this an example of my definition of Parametric Acceleration

[Michael Jacobs]

BEN CRENSHAW




BOB TWAY IN SEQUENCE