Strength Training Promotes Knee Health, Lowers OA Risk

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Strength Training Promotes Knee Health, Lowers OA Risk

Strength training at any point in life is associated with a lower risk of knee pain and osteoarthritis, contrary to persistent assumptions of adverse effects.

METHODOLOGY:

  • Researchers reviewed data on strength training and knee pain from 2607 adults. They used the Historical Physical Activity Survey Instrument to assess the impact of strength training during four periods (ages 12–18 years, 19–34 years, 3549 years, and 50 years and older).

  • The participants were enrolled in the Osteoarthritis Initiative, a multicenter, prospective, longitudinal study; 44% were male, the average age was 64.3 years, and the mean body mass index was 28.5 kg/m2.

  • Strength training was defined as those exposed and not exposed, as well as divided into low, medium, and high tertiles for those exposed; a total of 818 individuals were exposed to strength training, and 1789 were not exposed to strength training.

  • The primary outcomes were frequent knee pain, radiographic OA (ROA), and symptomatic radiographic OA (SOA).

“Our findings support the idea that the medical community should proactively encourage more people to participate in strength training to help reduce their risk of osteoarthritis and other chronic conditions,” the researchers write.

SOURCE:

The study, with first author Grace H. Lo, MD, of Baylor College of Medicine, Houston, Texas, and colleagues, was published on October 23 in Arthritis and Rheumatology.

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