Muscles are controlled by the nervous system. With proper application of NRT, the therapist briefly stimulates the receptors embedded in the selected muscle by asking for a position to be held or moved in a direction. The therapist taps on a muscle in such a way as to cause these receptors (detectors of pressure, vibration, stretching, speed of movement) to send a special message to the spinal cord. This action resets the nervous system to – within seconds – release a muscle from excessive tension. With the release, the knots, pain, and tightness are gone. Joint mobility and posture are improved.