jma
Posts: 2322
Joined: August 24, 2000
From: NY
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Hello. Read this the other day. Never saw anyone use it but heard of similar devices used abroad. Thoughts on this article?
"Scientists Urge Caution on Using Vibration Workout Machine
Advocates of a new type of vibration machine claim that it makes workouts more effective and reduces exercise time by two-thirds, but researchers say the science is thin and too little is known about the long-term effects of such powerful vibrations.
Machines such as the Power Plate use vibrations to tone muscle and claim to do it faster, says an Associated Press article. Promoters also say the equipment improves flexibility and strength, reduces pain and stress, builds muscle, and reverses osteoporosis. The Power Plate vibrates 20 to 50 times per second in three directions, increasing g-forces on the body, according to the Northbrook, Illinois-based company of the same name. The company says that raises the effectiveness of lunges, squats, and other exercises done while standing on the plate. Dozens of other companies are manufacturing and marketing similar machines, the article said.
But researchers warn of possible injuries ranging from back pain to cartilage damage. One warns that the high-powered jiggling might harm the brain. Some scientists also are concerned that high-amplitude vibration can be dangerous over time since it can send jarring waves throughout the body, said Andrew Abercromby, a researcher at Johnson Space Center. "I believe, and I think quite a few other people believe, the jury is still out on it," he said.
Clinton Rubin, a biomedical engineering professor at State University of New York at Stony Brook, says he has asked Power Plate to stop citing his research in its promotional materials. His work has led to another vibration device now pending Food and Drug Administration approval for prevention and reversal of bone loss from osteoporosis, but that device uses much gentler vibrations than Power Plate, he says. He believes the Power Plate's vibration levels could cause low back pain, cartilage damage, blurred vision, hearing loss, and even brain damage."
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Vibration workout machine. Thoughts? - 
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