스택앤틸트 vs X-팩터 스윙
S & T takes less strain on the back muscles. The logic of this is quite straightforward. (Keeping the object close to your body when you lift reduces the strain on your back and so reduces the risk of disc damage.) But the principle of X-factor must apply to the Downswing, when we have to hit much farther. FYI, the principle of X-factor is as wringing a wet towel. 스택앤틸트 스윙은 등근육에 무리가 덜 간다. 원리는 아주..
