Supraspinatus is a rotator cuff muscle located on the superior aspect of the scapula.
Origin: Supraspinous fossa
Insertion: greater tubercle of the humerus
Function: abduction of the humerus. Details vary from one study to another but it appears to pull the humerus into the fossa as it abducts and resists downward glide of the humerus in the fossa.
Tony Preston has a practice in Atlanta, Georgia where he sees clients.
He has written and taught about anatomy, trigger points and cranial therapies since the mid-90s.