Prevention or rehabilitation protocol for surfer’s needs to include:
~ stretching of the internal rotators (front of shoulders)
~ strengthening of the external rotators (back of shoulders)
~ combination of thoracic extension & scapulathoracic movement (trunk of body movement)
*Scapularthoracic dyskinesis or “winged scapula” is subtle, as you can see in the image.
What’s happening is, the strong internal rotators of the shoulder are pulling the scapula forward causing it to poke out in the back.
Not enough research has been done on surfing for most professionals to know this is the root cause of the shoulder pain. Please, I beg you, before getting shoulder surgery, find a physical therapist that specializes in surfers.