The spine is a complex structure surrounding and protecting the nervous system. It provides the mobility necessary to function and the protection that the delicate spinal cord and spinal nerves need to work properly. The spine is normally a strong and stable structure which is surrounded by muscles. The deepest layers of muscles that surround the spine are called, "core muscles". There are other core muscles too that are more superficial, but the most important core muscles are deep and directly around the spine. The deepest core muscles are called, "Multifidus Muscles". When these muscles are working properly they actually protect the spine when it moves. This protection is termed spinal stabilization. Ironically we do not have conscious control over these multifidus muscles. They work based on movement from the spine. So as the spine moves this stimulates the multifidus muscles to contract. This happens because there are 'motion detectors' in the spinal joints which tell the multifidus muscles to contract. As long as there is normal motion in all the spinal joints then there should be a normal multifidus muscle activity. However if there is not good motion in the spinal joints then there is decreased multifidus muscle activity, which will lead to the multifidus muscle 'falling asleep' or becoming inhibited. If this happens, then multifidus muscles will shrink away or atrophy and literally be replaced by fat.
This is the problem with people who experience back pain. As we age and are subjected to stress and injury. This can cause the spinal joints to get stiff and lose their normal movement; subsequently leading to a loss of muscle support from the multifidus muscle. Then something as simple as bending over to pick up something can strain the spinal joints or pull the spine out of alignment, because the spine did not have the proper support. When this happens the pain starts because when the spinal joints are strained then this results in a muscle spasm reflex and inflammation. Similar to a sprained ankle but this happens in the spine.
My next post will cover the most effective way to manage this condition based on my clinical experience and what the research shows. I must go back to work now and help change lives one spine at a time.
