Todd Dugan
New
Nah. It's what you think, not what you physically do. If your students benefit - OK. Placebo effect. If shoulder joints were close to each other and don't need hard structure fragments (clavicles and sternum) to cooperate to function simultaneously - perhaps, yes. But the anatomical reality is different. Shoulder joints are apart, most distal parts are together. Your version would suit geometry but not anatomical reality of a human.
Do an experiment - draw a line FO during downswing covering your lead shoulder. You can't cheat anatomy or physics.
Cheers
O.K., I will concede that you know a lot more about human biomachanics than me......................but, if I stand still, and only swing my left arm back and forth, in-plane, then the low point of my left hand travel is in-line with the left shoulder joint, the axis of the arm swing. Now if I attach my right hand to my left, I can STILL make my left hand swing down to the SAME low point, IF I straighten my right arm enough to allow it. Same low point, same axis, no?
Now does this mean I think that with this arm action that the low point of the left hand arc will be in-line with the left shoulder in an ACTUAL golf swing? HELL, NO! Because there is another whole system of rotation moving the hands on their plane.........the turn of the shoulders............for which the axis is the upper sternum.
I think I've boiled this thing down pretty good..... The low point of the hand arc will occur in-line with upper sternum UNLESS the left arm is allowed to continue swinging down, RELATIVE TO THE BODY, NOT THE GROUND, past the the point where the hands become in-line with the upper sternum. If the left arm couldn't do that, with obvious participation from the right, then the low point of the hand arc would ALWAYS be in-line with the upper sternum. But its not. In which case, the low point of the hand arc will occur somewhere BETWEEN the upper sternum and left shoulder