The advantage of building your swing from the ground up (which you can tell Ricky is doing because his hips are turning back towards impact before the arms even finish the backswing) is that it is the most efficient way of creating speed at impact.
But isn't this assuming too much? Arms moving back in the backswing does not mean that he hasn't started applying an opposite outward force. And if he has then the body would react. Thus the illusion of a ground up start. In reality is the body moving to support the start of the swing? But I guess we will never know until we stick needles in him.
Gris Gris!
I don't understand.
These folks are all MASSIVELY USING the ground to help them.
But the body reacting is the ground force thing, isn't it?
It is just that the body would have reacted IN ADVANCE of the actual arms moving back the other way.
I don't understand why the obvious physical action is termed an illusion. I am not saying that Rickie is consciously starting with his footwork, I have no idea. I'm saying that the physical action starts with the footwork. Whether that is because of a conscious intent or a subconscious result of his body preparing itself for an upper body conscious action doesn't matter. The footwork comes first.
I don't understand.
These folks are all MASSIVELY USING the ground to help them.
Every picture has bend legs straightening, has forward hips rising. Call it extension, call it posting on the left leg. Either way it is a good action.
What do you do in your swing to perform these actions? How do you get the external rotation and flexion going, and then how do you turn it into internal rotation and extension?
No, they are standing on the ground and massively using their lower bodies. The ground is just sitting there, providing resistance. They aren't "using" it to "help them". Without the body movements, nothing would happen. The ground wouldn't provide any "help" at all.
??????????What else are we supposed to "use" for "help"? Without the ground, the lower body movements would do nothing.
I'm all for differing opinions but Jeffy is just a parrot. C'mon man.
"Help" means to "provide assistance or support", something incremental to one's own, unassisted efforts. The ground can only reflect one's efforts, it can't amplify them. It is passive and inert and generates no "force" of its own.
Exactly what the ground does--provides support in performing the action of the golf swing--help. I admit, I haven't read the whole thread, so who says it amplifies forces?
Ok then, if that's your definition then absolutely the ground does not add any additional force than what the body generates by pushing against it.
So what relevant does that have to whether to generate power in your swing from the ground up? Your initial post was that Rickie Fowler is not building his swing from the ground up, and that he obviously does not "use the ground" or "shear forces".
Since then you've totally changed this to some point about the ground "helping". So maybe instead of creating whole new arguments every step of the way and totally changing what question you originally raised you can recognise that the answer is clear and definitive that Rickie does USE the ground (none of us are saying that it in some mysterious way provide him with additional power that doesn't involves his own weight, muscles and effort), that shear forces are involved in his swing, and that he does begin from the ground up.
I see absolutely no visual evidence that Fowler begins the downswing from the "ground up". As I said earlier, you are just making it up. Nor do I see any evidence that he "posts up on the front leg" to create a "shear force" that will rotate the body around the front leg powered by a pushing motion from the back leg. That is complete nonsense.