Huge power can be transferred to thrown or struck objects by using proper body rotation. Here are some examples from other sports apart from golf shown in slow motion.
Lumberjacks in action— Notice Balance, rotation, arm leverage, for power and accuracy.
These super slow motion videos of Dustin Johnson demonstrate body rotation to the extreme. I doubt our GreyPower bodies still have the ability to constantly move this way when swinging, the senior body is unlikely to be flexible enough or have the range of movement and strength required. However, these videos do show tremendous power can flow to the club head from using the leverage and body rotation created in thoroughbred athlete’s swing.
GreyPower Golf 