Janet Travell, who defined trigger points as “a highly irritable localized spot of exquisite tenderness in a nodule in a palpable taut band of muscle”, was one of the primary developers of this approach. In addition to local pain, trigger points can cause referred pain and twitching of the surround tissue.
There are two easy ways to deduce that you may have trigger points. One is if you experience pain in your body without the painful area being tender to your touch. The other is experiencing pain that seems beyond your expectation for a minor injury.
Using palpation (touch) to locate the point and applied focal pressure the therapist hyper-stimulates the nerve, leading to a latency period. During this respite the tissue will assume a more normal tone, breaking the painful cycle of pain and tension. The initial pain quickly abates with pressure so though there are periods of discomfort they are only brief periods during the whole treatment . This can be a very efficient way of relieve muscles pain.