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    Exercise Can Help Knee Pain if You Stick With It

    Arthritis Patients Who Exercised Regularly Had the Best Results
    By
    WebMD Health News
    Reviewed by Louise Chang, MD

    Nov. 5, 2012 -- Certain exercises appear to be better than others for improving knee pain from osteoarthritis, but consistency is the key to getting relief, a review of close to 200 studies shows.

    There was evidence that low-impact aerobic exercise and water exercises improved disability, and that aerobic exercise, strength training, and therapeutic ultrasound reduced pain and improved the ease of getting around.

    But people who stuck with their exercise programs got the most benefits in terms of pain relief and mobility, regardless of the activity they chose.

    Researcher Tatyana A. Shamliyan, MD, of the University of Minnesota School of Public Health, says many people with arthritis-related knee pain don’t exercise because it hurts, or they start an exercise program but quickly give it up.

    “For people with osteoarthritis, exercise can increase knee pain, at least short-term, and that can be a big deterrent,” she says. “That is why it is so important to start under the supervision of a physical therapist.”

    Knee Arthritis: Common Cause of Disability

    Knee osteoarthritis is a top cause of disability in the United States, affecting mostly older people.

    According to the CDC, half of adults who reach the age of 85 will develop osteoarthritis-related knee pain. Two-thirds of obese adults will do the same in their lifetimes.

    In the new review, published in the Nov. 6 issue of the Annals of Internal Medicine, Shamliyan and colleagues looked at 193 studies conducted between 1970 and 2012 that examined nonsurgical and non-drug treatments for osteoarthritis-related knee pain.

    The studies measured the impact of the treatments on pain, disability, and quality of life.

    While the studies showed a benefit for some activities, including low-impact aerobic exercise, water aerobics, and strength training, they were unable to show a benefit for others.

    This does not mean that these therapies have no value in the treatment of arthritis-related knee pain, the authors conclude.

    A major limitation of the study was that the researchers were only able to assess the impact of individual treatments, says University of Delaware assistant professor of physical therapy Joseph Zeni Jr., PhD.

    He points out that physical therapy programs typically include a variety of different therapies, and the impact of any one on specific result such as pain, range of movement, and overall ability is difficult to determine.

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