John Perrott Shoulder Pain part 1

You might go to see a specialist about shoulder pain and leave with a diagnosis:
It’s rotator cuff, a frozen shoulder, or impingement. The rotator cuff are four muscles that move the arm.
The most vulnerable muscle is the one that runs under the end of the shoulder blade and inserts onto the top of your arm bone. it is called Supra (on top of) -spinatus (the spine or ridge of the shoulder blade). The tendon sometimes wears with repeated movement, causing catching or impingement. A tennis serve or using a mouse repeatedly might wear the tendon. to lesson the wear rotate your shoulder back to create space when you lift your arm. The simple way is to turn your hand upwards as you lift your arm.
The most common shoulder pain is at the very front between the arm and the socket. There is a rim of cartilage called a labrum (lip). The labrum deepens the shallow socket. Pulling a straight arm across your chest is the worst stretch you can do if the arm is slipped forwards. It is better to join your fingers behind your back, bend forwards and straighten your arms as you push them backwards.
A frozen shoulder is a progressive condition. You might over strain or injure the shoulder. You might have poor circulation from diabetes or a heart that is not pumping strongly. The nutrition to the shoulder suffers. Muscles become stiff, the fluid in the joint thickens up as more collagen is produced. The arm bone starts to glue itself to the socket. Never give up trying to move your shoulder, walk your hand up a wall, hold a broom handle with both hands and make the arm move. Keep on swinging your arms when you walk.