The power in your golf swing comes mainly from the way your upper body rotates against the resistance of your lower body. If you are unsure that your rotation is not working effectively this is a great drill to help you achieve this. Like the photo above get 2 alignment sticks, put a stick between your belt buckle and the other held across your shoulder line. Yours hip should turn at a 45 degrees while your shoulders will turn at 90 degrees. This is the torque that is created in your swing to allow speed through the ball. It involves good flexibility which all the top players in the world have an abundance of. Your lower body must create the resistance against your upper body to maintain the disassociation to promote power in the swing. Try doing this in front of a mirror and see can you improve your rotation.
