The shoulder: Subscapularis tendinitis

Technique:
The patient is brought into the half-lying position, the arm in slight lateral rotation.
The therapist stands at the affected side.
The thumb of his contrateral hand is brought just inderneath the coracoid process. The other fingers are curved around the shoulder to give counterpressure.
When the thumb is pulled laterally two tendinous structures are felt slipping in a medial direction; these are the coracobrachialis muscle and the short head of the biceps.
By moving the thumb further laterally, still maintaining some dorsal pressure, the anteromedial edge of the deltoid is reached and pulled to the side.
The thumb is now on the the lesser tuberosity, on the insertion of the subscapularis tendon.
The hand is then turned into a vertical position, still maintaining some pressure in a posterior direction.

The active phase of the friction is by an upwards movement of the thumb (flexion of the wrist).
During the passive phase of the friction, the posterior pressure is somewhat released and the thumb brought back to the starting position.
During the whole procedure the deltoid is kept to the side.