A trigger point is a localised taut band of skeletal muscle located within a larger muscle group. Trigger points can be tender to the touch, and touching a trigger point may cause pain to other parts of the body (referred pain). This tightness in the musculature related to trigger points is thought to be related to changes in the nerve bundles within the muscle. Effecting these trigger points may provide a direct link to affect the nervous system to assist in changing muscle tone and therefore how muscles act on our joints.