The infraspinatus muscle is a common problem in the shoulder and the most likely to generate pain when the client sleeps on their side. Its position in the shoulder is critical for stabilizing the head of the humerus from shifting forward. There are several other muscles that produce similar symptoms. Here are other muscles that …
This protocol focuses on the rotator cuff tendons, called the SITS tendons as an acronym for the four muscles, supraspinatus, infraspinatus, teres minor, subscapularis. It works well when it follows the treatment of the sub-occipitals, lamina groove and SITS tendons. These two muscles are the primary targets of treatment in this protocol.
This post reviews the anatomy of and may be helpful before reviewing this protocol. This protocol focuses on the rotator cuff tendons, called the SITS tendons as an acronym for the four muscles, supraspinatus, infraspinatus, teres minor, subscapularis. This protocol works well when it follows the treatment of the sub-occipitals and cervical lamina.
Change your sleeping position: You can reduce shoulder pain from this rotator cuff muscle by changing your sleeping position. This position is a problem. Once the shoulder pain becomes chronic, sleeping on your side aggravates it at night. If the painful shoulder is on the bottom, the arm gets pushed forward in the socket. This …
Self Care – Shoulder pain when sleeping on your side Read More »
I have taken on a new project to teach anatomy for yoga. I am in the process of building an anatomy section for a quicker, practical understanding of musculoskeletal anatomy and physiology. I will be expanding my posts on the origin, insertion, function and trapped bones. When I talk to yoga teachers, the illustrations seem …
Using Anatomy Illustrations to Assess Restrictions. Read More »
Rotator Cuff Muscles Origin – scapula Insertion – head of the humerus Function – Stabilize, rotate and adduct the humerus Related sections of the website: Wikipedia entry for rotator cuff muscles. 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 …
Infraspinatus is a flat rotator cuff muscle located in the infraspinous fossa of the scapula. Origin: infraspinous fossa Insertion: posterior greater tubercle of the humerus Function: stabilize the humeral head, externally rotate the humerus Innervation: C4-C6, Brachial Plexus, Suprascapular nerve Wikipedia entry for Infraspinatus
Subscapularis The subscapularis muscle is thick with multiple bellies on the underside of the scapula. Its tendon is separated from the joint capsule by a bursa. It can be a key player in frozen shoulder and pitching restrictions. Origin: subscapular fossa Insertion: lesser tubercle of the humerus Function: stabilization of the humeral head, internal rotation of the …
Teres minor is a rotator cuff muscle that extends along the back of the axilla. Origin – lateral border of the posterior scapular surface Insertion – Lower posterior greater tubercle of the humerus Function – stabilize and laterally rotate the head of the humerus. Seems to contract with the same timing and intensity as infraspinatus. …
Supraspinatus 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 …
