Chronic shoulder pain is a common consequence of repetitive overhead activity, such as serving and smashing in tennis, freestyle or butterfly swimming, javelin throwing, or bowling in cricket. The shoulder joint is a truly remarkable creation. It’s quite a complex formation of bones, muscles and tendons and provides a great range of motion to the arm. The shoulder is made up of three bones, and the tendons of four muscles.
The bones are called the “Scapula,” the “Humerus” and the “Clavicle.” Or, in layman’s terms, the shoulder blade, the upper arm bone and the collarbone, respectively. The four muscles that surround the ball and socket joint of the upper arm bone and the shoulder blade are called the rotator cuff muscles . They all attach around the top of the upper arm bone and lie on each side of the shoulder blade providing strength and support for this joint . It is beneficial to know these muscles supraspinatus (lifts the arms out to the side and up ) infraspinatus (outwardly rotates the upper arms) teres minor (same) and subscapularis (inwardly rotates the upper arm)
To stretch: Simply stand upright and clasp you hands behind your back. Keep your arms straight and slowly lift your hands upwards. Hold this stretch for about 15 to 20 seconds, then repeat it 3 to 4 times.
.Start by lying on your stomach on a table or a bed. Put your left arm out at shoulder level with your elbow bent to 90° and your hand down. Keep your elbow bent, and slowly raise your left hand. Stop when your hand is level with your shoulder. Lower the hand slowly. Repeat the exercise until your arm is tired. Then do the exercise with your right arm.
.Lie on your right side with a rolled-up towel under your right armpit. Stretch your right arm above your head. Keep your left arm at your side with your elbow bent to 90° and the forearm resting against your chest, palm down. Roll your left shoulder out, raising the left forearm until it’s level with your shoulder. (Hint: This is like the backhand swing in tennis.) Lower the arm slowly. Repeat the exercise until your arm is tired. Then do the exercise with your right arm.
.In a standing position, start with your right arm halfway between the front and side of your body, thumb down. (You may need to raise your left arm for balance.) Raise your right arm until almost level (about a 45° angle). (Hint: This is like emptying a can.) Don’t lift beyond the point of pain. Slowly lower your arm. Repeat the exercise until your arm is tired. Then do the exercise with your left arm. This exercise is very popular and is commonly recommended as part of a shoulder-injury rehabilitation programme.
The prevention of shoulder injuries comes down the conditioning of the shoulder muscles and tendons, which ultimately involves both stretching and strengthening of the shoulder joint