[1] It identifies the presence of a pathology involving the biceps tendon or glenoid labrum.
The specific positive findings to the test include pain in the bicipital groove indicating biceps tendinitis,[2][3] subluxation of the long head of the biceps brachii muscle,[3] and presence of a SLAP tear.
The patient needs to be in a seated position with the elbow flexed to 90°, forearm pronated (palm facing the ground), and the arm stabilized against the thorax.
[1][2] The patient is instructed to actively supinate the forearm, externally rotate the humerus, and flex the elbow against the resistance of the examiner.
Pain at the superior glenohumeral joint is indicative of a SLAP tear.