To create power in your golf swing, you need to be able rotate your shoulders, trunk and hips freely. If there is any tightness in these areas, you’ll end up making compensations in your golf swing that may cause power leaks. Increasing flexibility can help you rotate your body and swing more freely

Standing without a club, assume a good set up. As you do these exercises, remember that we are practicing to hit a golf ball.
Always stay in your spine angle and keep your vision down where the ball would be.
You can crisscross your arms over your chest From here, think of winding your upper body over the resistance of your lower body.
You want the weight of your lower body to shift so it ends up positioned over your right hip, leg, and foot.
After you have loaded your body weight into your right foot, you immediately shift your lower body back to the left as your upper body momentarily stays put.
Specifically, your left hip bumps toward the target, which makes your right shoulder drop down.
Once this move has taken place, you can complete the sequence by turning your right side through to the finish.