The Summary
This systematic review and meta-analysis analyzed 120 randomized controlled trials involving 10,253 participants to evaluate resistance training's impact on knee osteoarthritis. Researchers looked at three distinct phases: early osteoarthritis, preoperative, and post-knee replacement. They found that resistance training consistently and safely improved mobility, walking capacity, and knee extension strength. It also significantly reduced pain, stiffness, and improved overall quality of life, particularly in early stages and after joint replacement, without increasing the risk of adverse events compared to control groups.
Why this is interesting
For years, many patients with achy, worn-down knees feared that lifting weights would worsen joint damage. This comprehensive study turns that myth on its head. It proves that resistance training is not only safe across all stages of knee osteoarthritis, but highly beneficial—even before and after joint replacement surgery. For readers, this means you don't have to fear the weight room. Safely challenging your muscles is one of the single best ways to protect your joints, relieve chronic pain, speed up surgery recovery, and reclaim your mobility.