The legs pushing into the ground and the ground pushing equal energy back generate the inital forces that make golf swings possible. The body's ability to muscularly harness and redirect that energy makes good golf swings possible.The muscles that rotate the torso certainly help to harness and redirect this energy to the powerful muscles that move our arms, hands, and golf club.
Thanks, Coop...Good stuff. I like it, and Percy Boomer, author of On Learning Golf (1946), would have liked it, too.