Researchers at the Norwegian University of Science and Technology have found an association between the level of leisure time physical exercise and a future risk of developing fibromyalgia. The research team also identified BMI as an independent risk factor for fibromyalgia. Details of the study appear in the May issue of Arthritis Care & Research, a journal published by Wiley-Blackwell on behalf of the American College of Rheumatology (see also Fibromyalgia).
Fibromyalgia (FM) is a chronic pain syndrome characterized by widespread pain lasting more than 3 months, and tender point sites in the neck, shoulders, back, hips, arms, and legs. Associated features often include unexplained fatigue, sleep disturbances, headache, cognitive difficulty, and mood disturbances. The prevalence of FM increases with age and is considerably higher among women than men. Although the etiology of FM is poorly understood, many authors have suggested that a dysfunctional autonomic nervous system involving deficiencies in the hypothalamic-pituitary-adrenal (HPA) axis and sympathetic nervous system contributes to the development of FM by altering pain perception and endogenous pain inhibition.
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