Doing Somatic Exercises. The Goal is to learn to relearn and use the full movement for example of the shoulder or hip. To relearn a relaxed rest position.
Information of a book of Thomas Hanna:
Chronical muscle tension don’t get released during sleep. They are also active during sleeping, so there is no relaxation. This is because the muscles got a false memory and think the tensed state is the normal relaxed state.
Also to tense muscles are always active and not relaxed muscles and consume a lot of Energy of the body. This can lead fast do tiredness.