1 00:00:00,000 --> 00:00:01,960 (English captions by Andrea Matsumoto from the University of Michigan) 2 00:00:02,189 --> 00:00:06,950 Infraspinatus and teres minor muscle strength is tested with resisted external rotation. 3 00:00:06,950 --> 00:00:09,820 Pain or weakness suggests a possibly tendinopathy or tear.