Having tight or overly developed pectorals and latissimus (chest and back) muscles can affect how your shoulders work in the golf swing.

The tight and overly developed muscles tend to dominate the arm movement in the golf swing, restricting how well your shoulders can turn which can lead to swing compensations and even injury.

1. Extend your arms long as you assume a golf stance.
2. Your arms hang down as if you had a golf club in your hands.
3. Swing your arm back to open up your chest and feel a stretch in your upper back. Go only as far back as you feel comfortable. Repeat on the opposite arm.
4. Return to the start position and repeat alternating arms for 10 to 15 repetitions.

This exercise can be down before or after a round of golf.