A myofascial trigger point is a hyperirritable locus located within a taut band of muscle or fascia. The spot is painful on compression and can evoke characteristic referred pain, tenderness and autonomic phenomena. It appears that most muscular pains have a trigger point that causes the muscle to go into spasms. Trigger points causes muscle shortening and decreased strength. Trigger point therapy applies concentrated finger pressure to these points to break cycles of spasm and pain. Compression then release of painful tissue creates a temporary local ischemia followed by reactive hyperemia. It is speculated that this helps to flush out the metabolites that cause nerve irritation and pain, so that hypertonicity and spasm also diminish.
What causes trigger points:
* Mechanical stress due to skeletal stress, body disproportion, nerve impingement, muscles overloading and repetitive movements or work
* Nutritional deficiencies due to digestive disorders, celiac disease, chronic health conditions, dieting, excessive alcohol consumption and food allergies. Low or low normal levels of vitamins B1, B6, B12, C, folic acid and iron, calcium, potassium and several trace elements which are essential for normal muscle function.
* Metabolic and endocrine abnormalities such as subclinical or mild hypothyroidism, high levels of uric acid, estrogen imbalance and low blood sugar (hypoglycaemia).
* Psychological factors such as depression, anxiety, tension, feeling of hopelessness, behaviour and sleep disturbances.
* Viral or bacterial chronic infection.