Creating Symmetry Within The Body, As It Relates To C Posture, Is Essential To Improving Your Swing. Strengthening Opposing Muscle Groups Is Absolutely Necessary In Order To Achieve This
A few key exercises that will help you develop this balance are as follows:
A. External rotator cuff exercise with a theraband
Three of the four rotator cuff muscles are found on the backside of the shoulder. These muscles are responsible for keeping the shoulder girdle in place. Risk of injury occurs when these are weak or unbalanced because these three muscles are fighting hard to pull the shoulder joint back into alignment from its forward, rounded posture.
Keep the theraband at elbow level, holding your arm at a 90 degree angle. From the center of the body, rotate your arm outward away from the body maintaining the 90 degree angle of the arm.
These can be done on a daily basis. Three sets of 20 repetitions will help immensely