In the golf swing the ground is used as a leverage point to produce the rotational power that leads to long, straight shots. Leverage from the ground is transmitted through the legs and hips up to the pelvic region. The pelvic region is the base of your athletic core and is the source of all athletic power.
Three Points For Generating Maximum Core Power
Your core cannot generate maximum power if it is not in optimal positions. The first requirement for great power is that your muscles hold your organs tightly so that power can flow through your body. Second, you must focus on training the muscles that rotate the torso from side to side. Third, you have to train the muscles that move the ribs towards and away from the pelvis. The only way you can generate your full power is if all of these muscles are strong enough to transfer the power developed from the point of leverage where the feet contact the ground, through the pelvis and up through the upper body.
It is important for your internal organs to be supported because if your soft organs are lose and moving around, then you lose a lot of power. Imagine if you were to hit a rubber hose that was loosely filled with metal BB