Internal shoulder rotators

The group of muscles involved in internal shoulder rotation (subscapularis, teres major, anterior deltoid, pectoralis major, latissimus dorsi) are tested by doing a passive external shoulder rotation.

Test: The subject lies on his back, the tested upper arm is in line with the shoulders and the arm is bent 90 degrees at the elbow. The coach slowly executes a passive external shoulder rotation (bringing the lower arm close to head-level).

Result: Normal extensibility is characterized by a 90 degree range of motion. This means that the coach should be able to bring the forearm to the table. Less than that is hypo-extensibility and more than that (arm lower than the table) is hyper-extensibility.

Normal extensibility of the internal rotators
Turbo Charged Fitness With The Tabata System

Turbo Charged Fitness With The Tabata System

The Tabata workout system is a version of the High Intensity Interval Training program developed by Professor Izumi Tabata as training for Olympic speed skaters in 1996. The results studies conducted on the training program confirm that even a four minute cardiovascular exercise routine improves a persons level of fitness.

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