Figure 13. Image taken from Burkhart, S.S., Morgan C.D. and Kibler, W.B. The disabled throwing shoulder: spectrum of pathology Part III: The SICK scapula, scapular dyskinesis, the kinetic chain, and rehabilitation. Arthroscopy 19(6), 649, 2003. The original caption to the image reads: 'Ideal mechanics involve abduction in the plane of the scapula (A, dotted line) with the elbow high enough to keep the upper arm at or above the horizontal plane. (B) With a "dropped elbow" (solid line), the upper arm hyperangulates posterior to the plane of the scapula. (C) This pitcher has excellent mechanics, with the arm abducted in the plane of the scapula and positioned above the horizontal plane.' Note that this image shows an overhand thrower at or close to maximum external rotation of the arm.