1. The patient lies prone 2. The therapist places the cephalad hand on the shoulder at the posterior humeral head and the caudal hand lifting the humerus into shoulder horizontat extension with the arm held against the body 3. While lfting the humerus into shoulder horizontal extension, the therapist places an equal and opposite counterforce at the posterior humeral head of the shoulder with the cephalad hand in an anterior direction 4. At the tissue barrier, the therapist can create a progressive oscillation to manipulate the shoulder capsule. This is a posterior to anterior direction of force tes Caution should be taken as the anterior capsule can stretch quickly