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Arthritis Knee Pain: Exercise and Diet = Best Treatment
Knee pain decreased and function increased significantly in overweight or obese adults with knee osteoarthritis (OA) who lost at least 10% of their baseline body weight, and those who combined diet and exercise had better outcomes than those who used diet or exercise alone in a large randomized trial.
The final data from the Intensive Diet and Exercise for Arthritis (IDEA) study were published in the September 25 issue ofJAMA.
“Intensive weight loss of at least 10% of body weight is possible and safe in this population,” lead author Stephen P. Messier, PhD. “Overall, diet and exercise together were more effective than either diet or exercise alone. Patients who had diet plus exercise had less inflammation, less pain, better function, improved health-related quality of life, and better mobility. The diet-only group had greater reductions in knee joint loads than the exercise comparison group.”
While the weight loss intervention was successful and their lean mass relative to their new body weight actually increased, the absolute amount of lean mass decreased in both diet groups. Future weight loss studies in the population should try to combat the reduction in muscle mass, perhaps with a more intense strength training component of the exercise regimen.
Abstract
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