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Figure 3 | Journal of Experimental Orthopaedics

Figure 3

From: Bulk effect of the deltoid muscle on the glenohumeral joint

Figure 3

Illustration of the range of motion of the abbreviated throwing motion (ATM, top) and abduction (ABD, bottom). The ATM segments were defined according to the phases of the pitching motion as published by Meister.(Meister [2000]): Segment I ranged from maximal external rotation at 90° of humeral abduction to 90° of external rotation, segment II ranged from 90° or ER to 80° of external rotation of the humerus, and segment III ranged from 80° of external rotation to 45° of external rotation and was at the same time the end of the motion (end of acceleration phase). The abduction was segmented into 30-60-90-120-150 degrees of abduction.

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