Rotator Cuff


Muscle Roles: What is an Agonist, Antagonist, Stabilizer, Fixator or Neutralizer Muscle?

Perhaps the biggest misunderstanding about how skeletal muscles function to produce the body's movements concerns their particular role. Most people think that a muscle performs ONE particular and very defined role and that they always perform this role. This is not how it works. Muscles must work together to produce different bodily movements and a particular muscle's role may change depending on the movement.

Continue Reading » Muscle Roles: What is an Agonist, Antagonist, Stabilizer, Fixator or Neutralizer Muscle?


The Shoulder Complex: Demystifying the Shoulder with Eric Beard

The shoulder joint itself is known as the glenohumeral joint. It is a multi-axial ball and socket enarthrodial joint. This joint is the articulation between the glenoid fossa of the scapula and the head of the humerus. This is the area that most people think of as the shoulder joint. The humerus is, however, one bone of the shoulder.

Continue Reading » The Shoulder Complex: Demystifying the Shoulder with Eric Beard


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