To effectively treat postural syndromes, the dysfunctional segment or region must be identified and treatment of the key link given. It is not enough to simply identify muscle imbalance and treat those muscles. The muscle imbalance concept is supported by considering neurodevelopment of the upright posture. Supraspinal control, which begins in the infant at 3 weeks, is the beginning of voluntary control. When dysfuncitonal muscle chains develop at a subcortical level, voluntary control must be initiated and practiced until correct function is adoped at the subcortical level.