The Golgi tendon organ is not located in the muscle spindle as you say. It is located at the musculo-tendinous junction. The GTO fires in response to sufficient tension (either through contraction or passive stretching) and the muscle reflexively relaxes and lengthens. As to whether the GTO 'resets' secondary to injury I'm not sure. Where did you learn that?
And, the board says, "wrist extension restriction," but he's demonstrating elbow extension. Plus, he's not talking about the subtlety the muscle barriers can have -- he only mentions not being able to extend at all.
Yeah I'm in school right now and I learned that it was isometric contract for 5 - 7 sec, then wait 5 - 10 sec, and then move to the next restriction and repeat.
@@bridgettep1486 Muscle Energy Technique is not new. It shares a lot with PNF. The big difference is that most MET procedures are looking at joint alignment. Dr. Mitchell, the father of MET, developed it as an alternative or adjunct to thrust manipulations. MET and PNF started around the same time, and probably influenced each other.