Cheating

 

This is what Frozen Should does to you. 

The human body is an amazingly intricate device of interconnected parts. When Frozen Shoulder kicks in, you can no longer swing your arm through the full range of movement. To compensate you lift the entire shoulder. Check the height differences of the tip of the shoulder. See the curvature of the spine. Imagine the extra stresses transmitted to the surrounding muscle.

So while the immediate effect is in the shoulder itself, it ripples outwards causing knock on problems.

This photo shows what Feng calls 'cheating'. It shows how you make up for what the joint is supposed to do through contortions in other places.