To do this stretch the stretcher lies prone with their shoulder at 90 degrees also with their elbow at 90 degrees, their arm must be internally rotated as far as possible with their upper arm resting on the table. The partner places one hand over the stretcher's elbow and the other under their wrist. The stretcher begins to slowly attempt to externally rotate their humerous (try pushing their wrist towards the ground). The stretcher then relaxes and inhales deeply whilst their arm remains in the starting position. On the exhale the stretcher contracts the subscapularis to internally rotate their humerous and deepen the infraspinatus stretch.
Information obtained from McAtee, R. & Charland, J. (1993) Facilitated Stretching
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