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But researchers say that it's only temporary.
About 100,000 veterans from the first Gulf War war have reported chronic musculoskeletal pain (CMP) similar to fibromyalgia. The researchers used heat to test the pain sensitivity of 15 Gulf War veterans with CMP and 17 healthy veterans of that war after a workout. Compared to the healthy participants, veterans with CMP found the heat stimuli to be more intense and unpleasant.
The vets with CMP also reported more intense leg pain during exercise and were more sensitive to the heat stimuli after the bout of exercise than they were before it. However, there were no significant differences in the pain threshold between vets with CMP and healthy vets.
Previous research has found that chronic (long-term) exercise can help reduce chronic muscle pain, noted the researchers, who worked at Middleton Memorial Hospital in Madison, Wisconsin and the University of Wisconsin.
Doctors need to encourage regular exercise for patients with chronic musculoskeletal pain in order to prevent disability, even though the early stages of an exercise program may cause increased pain for a short time, according to the researchers.
The study appears in the current issue of the Journal of Pain.
-- Robert Preidt
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