A healthy person is one who has good compensatory abilities. He or she also has a range of optimal and effective postural and movement strategies in daily living. Symptoms result from running out of compensatory strategies, leaving tissues compromised. A person in pain or with a movement dysfunction then has a limited repertoire of possible movement strategies, limited by pain, muscle imbalance and change in the way the tissues send and receive information from the central nervous system. Pain and injury cycles are created. Pain inhibits muscle functioning as a protective mechanism and the vicious cycle continues.