George J. Goodheart, Jr, D.C., founder of Applied Kinesiology, noticed that although we commonly feel muscular pain in tight and contracted muscles, the problem is not necessarily located in the muscle that hurts. Weak muscles in one region of the body can cause an opposing normal muscle to become painful and tight.
The “normal” approach in physical therapy is to “treat” the painful, contracted, tight, muscle but often the tension, even temporarily released, will return. In Kinesiology, once we balance the “opposite” Weak Muscle (Hypotonic Muscle) the tight and painful muscle may become normal.