How does NMT work?

Postural muscles are also referred to as core stability muscles, are found deep in the body. The first muscles that typically come to mind with posture are the muscles along the spine. The erector spinae muscles run along the bones of your spine, the vertebrae, from your neck all the way to your tailbone. These muscles hold the spine in extension or upright, counteracting the pull of gravity. Abdominal muscles support the structures at the front of your trunk, balancing the pull of your back extensors. The quadratus luborum muscles at the top of your pelvis help stabilize the pelvis and spine in the lower back in an upright position. The purpose of postural muscles is to keep good posture in the field of gravity. These muscles consist mostly of slow-twitch muscle fibres and have a greater capacity for prolonged use but are prone to over working. This means if you have poor posture or you have long periods of sitting immobile your postural muscles get tired and they become weak and less efficient. The longer the situation continues the more likely you are to develop postural imbalances and they finally you get knots and pain!

I said in a previous post that scientists are interested in finding out how massage works.  So if we accept that massage reduces muscle pain, that leaves the question, "How does massage reduce muscle pain?". In 1965, Ronald Melzack and Patrick Wall outlined a scientific theory about psychological influence on pain perception; the ‘gate control theory’.  According to the gate control theory, pain signals are not free to reach the brain as soon as they are generated at the injured tissues or sites. They need to encounter certain ‘neurological gates’ at the spinal cord level and these gates determine whether the pain signals should reach the brain or not. In other words, pain is perceived when the gate gives way to the pain signals and it is less intense or not at all perceived when the gate closes for the signals to pass through. Cutaneous mechano-receptors are stimulated by touch (massage) and transmit information within large never fibres to the spinal cord.  These impulses block the passage of painful stimuli entering the same spinal segment along small, slowly conducting neurons. This theory gives the explanation for why someone finds relief by rubbing or massaging an injured or a painful area. For example, the pain gate theory explains "how"  a child feels better after mum or dad intuitively rub their knee when they have fallen over. In summary massage produces short term pain relief by being a particularly effective trigger for the pain gate process. References Melzack R, & Wall PD (1965). Pain mechanisms: a new theory. Science (New York, N.Y.), 150 (3699), 971-9  Moayedi M, & Davis KD (2013). Theories of pain: from specificity to gate control. Journal of neurophysiology, 109 (1), 5-12 Jacobs M. (1960) Massage for the relief of pain: anatomical and physiological considerations.  Physical Therapy Review, 40: 93-8 Melzack R, Wall PD. Pain mechanisms: a new theory. Science. 1965 Nov 19;150(3699):971–979. Wells PE, Frampton V, Bowsher D. (1988) Pain: Management and Control in Physiotherapy.  Heinemann Medical.  Chapter 13. Watson J. (1982) Pain mechanisms: a review.  1. Characteristics of the peripheral receptors.  Australian Journal of Physiotherapy.  27:135-43

Sciatica is pain in the lower back through the hip, thigh,  knee to the leg caused by an irritated sciatic nerve. The sciatic nerve which runs from the [...]