When you shoot a basket ball. No matter what the shot there is a slight to major down force in your legs to push up to help accelerate your arms. So if your body was facing the basket and you turned to the right to catch a pass. Then as you caught the pass your upper body starts to square up to the basket. As that is happening you are loading the ground or moving down so you can push up to shoot the ball. The longer the shot the more you push down to have more force to work with. The same in golf.