The shoulders are a critical part of the golf swing. The shoulder muscles allow the arms to turn and extend correctly over and behind the head through the backswing. Strong and flexible shoulder muscles also allow the golfer to have a solid follow-through and finish. A flexible and solid backswing and follow through are essential ingredients to a consistent golf swing. This exercise also works other muscles including the trapezius and biceps.
Stand in your golf posture, arms extended out in front of you, holding light hand weights.
Slowly squeeze your shoulder blades together bringing your elbows up to your back.
Drop arms down to start position and repeat motion.
Do 8 to 10 repetitions.
This can be done with or without weights. This exercise will strengthen your postural muscles in your back.