Review Question - QID 217532

A 15-year-old high school baseball pitcher presents to your office complaining of shoulder pain in his throwing arm that has been present now for 2 weeks. He describes the pain as deep in the anterosuperior aspect of the shoulder and it is worse when he reaches the late cocking phase of his throwing sequence. As a part of his physical examination, you measure his shoulder range of motion (ROM) with a goniometer, holding the scapula fixed. Compared to the non-dominant arm, which of the following glenohumeral ROM measurements is most associated with an increased risk of shoulder injury in overhead throwing athletes like this patient?