dimanche 7 septembre 2014

What is sciatica?

By Joshua Moffat


Sciatica typically means discomfort or disturbed sensation in the back that radiates into the leg, knee and foot, though each person's symptoms may differ a little. There are several causes of sciatica:

*Irritation of the Sciatic Nerve (one of the thickest nerves in the body) by compression of surrounding muscles

*Compression of the nerves that supply the leg and lumbar region as they exit the spine by disc bulges, bony growths or toughened ligaments

*Damage of tissues like muscle, ligament, bones or tendons in the low back which can then refer severe agony down into the leg

*Additional causes include problems with intestinal and pelvic organs and veins but in contrast to the other causes these are extremely rare

Because sciatica is nearly always accompanied by lower back discomfort there are similar risk factors for both Lower Back Pain and Sciatica:

A sedentary approach to life is a huge predisposing factor for a number of reasons, when an individual is sitting for long periods they will be supporting the weight of their trunk, shoulder and head typically on the low back and pelvis. This leads directly to a situation where a comparatively tiny quantity of tendons, ligaments and muscles are supporting a large part of your body weight. Because the body likes loads to be spread around so loads are shared, prolonged sitting can end up in over load of areas of tendon, ligaments and muscles which invariably means they get materially fatigued and aren't as good at supporting you afterwards.

Smoking is a predisposing factor because of the damaging effect on arteries. This increases swelling in the body and over a period of time can lessen the amount of blood brought to an injured area by decreasing the flow through damaged vessels.

Folk working in roles that call for frequent lifting who haven't been taught (or don't use) correct strategy are also at bigger risk.

Treatments include Chiropractic, Osteopathy, Physiotherapy, Acupuncture & Massage.

Pain killers can be useful at alleviating pain in a number of cases.




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