Video: guy takes swing as he falls into pool.
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I was debating putting this in the instruction forum. It's both entertaining and informative.
Okay, so since I don't know the first thing about what Erik said, I want to ask a question:
My first response after seeing the video was, "this illustrates just how much the lower body plays in swinging properly, because his downswing and follow through is all arms, wrists."
Anybody care to expand on that and point out how that statement is right/wrong or not specific enough?
Very interesting. An argument from the conservation of angular momentum does explain his movements though. (Not saying that it's got anything to do with "downswing sequencing" btw. I don't know what that phrase means.)
Look at how his lower body rotates in the opposite direction from what they would have had he been doing his swing while standing on solid ground. Initially when he starts falling he has no appreciable angular momentum. Therefore, when he tries to rotate his torso away from where the ball would be his lower body must rotate in the opposite direction, otherwise he would somehow have been able to make himself spin (i.e. pick up angular momentum) without any external force having acted on him. Same thing happens in reverse in the downswing (lower body rotates away from where his target would be, rather than towards as would happen usually).
The angular momentum is another topic. Erik just wanted it on "the record". There are a group of instructors out there that think having the lead arm more "in" during the backswing or downswing creates more angular momentum.
Now that's a real reverse pivot
Erik could answer it better than I can but I would think it would look similar. With the hips rotating towards the "target" on the backswing and rotating behind the golfer on the downswing.
That's the point of the video, to illustrate what would happen if we didn't have the ground to "react" off of.