So how can Inversion help you to relieve your back pain? Quite simply, inversion therapy puts gravity to work for you by placing your body in line with the downward force of gravity. Inversion elongates the spine, increasing the space between the vertebrae, which relieves the pressure on discs, ligaments and nerve roots. Less pressure means less back pain.
Every nerve root leaves the spine through an opening between the vertebrae-the size of this opening is largely controlled by the height of the intravertebral disc. Discs that are plump and contained in their ligament "wrappers" are necessary to keep the nerve roots free of pressure and your body free from pain.
Stress and tension can cause muscle spasms in the back, neck and shoulders, as well as headaches and other problems. Tense muscles produce spasms and pain by reducing the supply of oxygen and by reducing blood and lymph flow, allowing the accumulation of waste chemicals in the muscles.
Inverting yourself to as little as 25° for even a few minutes can help relax tense muscles and speed the flow of lymphatic fluids which flush out the body's wastes and carry them to the blood stream. The faster this waste is cleared, and fresh supplies of oxygen are introduced, the faster stiffness and pain in the muscles can disappear. A study conducted by physiotherapist L.J. Nosse found that, "EMG (electromyographic) activity, an indicator of muscle pain, declined over 35% within ten seconds of assuming the inverted position. See Medical Studies
Inversion can also help to encourage good posture. When inverted, your body is in line with gravity. Your spine wants to naturally go to its proper form (a gentle "s" curve). A regular program of inversion can help you to maintain proper posture and keep your body in balance. Let's face it-poor posture is not only unhealthy, it's unattractive.