What is a trigger point

18.131 According to Kle and Kreisman3 a trigger point is:

an accumulation of metabolic waste products (such as carbon dioxide, lactic acid, hyaluronic acid, etc.) that concentrates at points in muscle. It causes local pain, as well as pain in other parts of the body. ^ese metabolic accumulations cause pain by irritating nerve endings in the muscle, sending an excess of pain signals to the nervous system.

^e muscles effected by trigger points can be tight and contracted, or weakened. When the muscles involved are attached to the spine, they cause spinal distortions and joint problems. If the spine becomes misaligned, these problem joints cause further irritation to the spinal nerves. ^is can cause further problems such as sciatica, low back pain, headaches, numbness, pain and tingling in the arms and legs.

18.132 Trigger points not only affect the vertebrae, but other joints of the body. Instead of smooth and soft muscle pulling on the joints, there is taut and lumpy muscle pulling incorrectly on the joints and thus causing problems. Trigger point therapy returns the muscle to its soft and smooth natural state.

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