“a muscle in an over-protective state” due to
- pain
- weakness – due to muscle proprioceptors being in a confused state, and/or
- restricted range of movement or motion
The muscle shuts down leaving you with a restricted range of movement and the secondary muscles around it have to take up the additional load which causes them to get fatigued very fast.
Hyperton-x correction effectively re-synchronises the proprioceptors, restoring the muscle to normal function.