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Whole-body vibration doesn’t slow bone loss

Posted By Howard LeWine, M.D. On November 17, 2011 @ 12:52 pm In Exercise and Fitness,Osteoporosis | Comments Disabled

Good vibrations may work for dancing on the beach or for romance, but they don’t seem to do much to strengthen bones.

Results of a clinical trial published in the Annals of Internal Medicine showed that older women who stood on a vibrating platform for 20 minutes a day experienced just as much bone loss over the course of the year-long trial as women who didn’t use the platform.

The results are a disappointment for older women and men looking to strengthen their bones without exercising, not to mention to the companies that have sprung up to sell whole-body vibration platforms as an easy way to halt osteoporosis, the age-related loss of bone.

The idea behind whole-body vibration makes sense. Like walking, running, and other weight-bearing physical activities, whole-body vibration modestly stresses bones. This stress causes bone cells called osteocytes to activate two other types of bone cells: osteoclasts, which remove damaged areas of bone; and osteoblasts, which form new bone. The end result is denser, stronger bones.

Earlier studies of whole-body vibration have been mixed, with some showing a benefit for bones and others, like the new Annals study, showing no benefit. A new technical report from the federal Agency for Healthcare Research and Quality concluded that

Safety concerns emerged from key informant discussions, including unknown long-term harms from the use of whole-body vibration therapy, and the potential inability of consumers to clearly distinguish low-intensity platforms intended for osteoporosis therapy from platforms intended for high intensity exercise. Claims about whole-body vibration therapy for the prevention and treatment of osteoporosis cannot be made without further research.

It’s possible there may still be a place for whole-body vibration therapy. The latest study lasted only one year, and it’s possible that 12 months is not long enough to show slowing of bone loss. It’s also possible that whole-body vibration could prove to be worthwhile for people who can’t walk.

Tried and true protection

One of three postmenopausal women break a bone because of osteoporosis. Men break bones for the same reason, but not quite as often. The goal of preventing and treating osteoporosis is to reduce the risk of broken bones. Here are ways to help do that.

Engage in whatever exercise works for you. Weight-bearing and resistance exercises are best. Weight-bearing activities are those in which your feet and legs bear your full weight. These include jogging, brisk walking, jumping, and stair climbing. Resistance (sometimes called strength training) exercises range from the use of free weights to rubber stretch bands, resistance machines at the gym, or the weight of your own body by doing sit-ups and push-ups.

Get enough calcium and vitamin D. There are plenty of foods and beverages rich in calcium. Aim to take in 1,200 milligrams of calcium each day. Because few foods contain vitamin D, I recommend to my patients that they take 1,000 IU of vitamin D3 daily.

Don’t smoke. Smokers lose bone faster than nonsmokers, and have higher fracture rates.

Several medications are available to help people with very low bone density. Some work by stimulating bone growth, others by reducing the breakdown of bone. These should be used in addition to the lifestyle changes described above, not in place of them.

To get the best vibrations for your bones, shake them on the dance floor or a walking path in your neighborhood, not on a vibrating platform that moves while you stand still.

Related Information: Osteoporosis: A guide to prevention and treatment

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