Those unfortunate people who suffer from a bum knee also may have a secret: They may be fibbing about how much exercise they're getting.
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Study results published online by the journal Arthritis and Rheumatism indicate that a healthy proportion of patients with osteoarthritis in the knee the amount of physical activity they’re undertaking—significant because exercise is therapeutic for bones and joints.
The study, led by the Northwestern University Feinberg School of Medicine, Chicago, relied on 1,223 knee osteo-arthritis patients ages 45-79 who used accelerometers to allow for measurement of actual physical activity, and found that 12.9% of men and 7.7% of women were meeting public health physical activity guidelines. That compares with previous studies relying on—ahem—the patients’ word that indicated that 22% to 40% of adults ages 45 and older with doctor-diagnosed arthritis met activity guidelines.
And the results found that 40% of men and 46% of women in the study were considered inactive, meaning they did not have a single 10-minute period of moderate-to-vigorous activity over a one-week period.
“These findings point to the urgent need for widespread dissemination of public health interventions to reduce the sedentary lifestyle of the 27 million adults with knee OA,” the authors wrote.
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