Effect of Muscle Energy Technique versus Maitland Mobilization with Iastm on Pain and Disability in Shoulder Periarthritis: A Randomized Controlled Trial

The shoulder joint (glenohumeral joint) is a ball and socket joint between the scapula and humerus. It is the major joint connecting the upper limb to the trunk. It is one of the most mobile joints in the human body, at the cost of joint stability. The shoulder joint is formed by the articulation of the head of the humerus with the glenoid cavity of the scapula. This gives rise to the alternate name for the shoulder joint. Like most synovial joints, the articulating surfaces are covered with hyaline cartilage. The head of the humerus is much larger than the glenoid fossa, giving the joint a wide range of movement at the cost of inherent instability. To reduce the disproportion in surfaces, the glenoid fossa is deepened by a fibrocartilage rim, called the glenoid labrum. As a ball and socket synovial joint, there is a wide range of movement permitted: Flexion, Extension, Abduction, Adduction, Internal rotation, External rotation.