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Leisure-time physical activity is related to cartilage health and quality health in knee osteoarthritis -- ScienceDaily

"The effects of intermittent impact and compressive loading during gait to knee cartilage may evoke favorable effects in cartilage such as improved fluid flow and nutrient diffusion. Maintaining cartilage health requires daily physical activity, and when performed regularly, walking and Nordic walking together with other activities of daily living can maintain or even improve the quality of knee articular cartilage," says Doctoral student, physiotherapist Matti Munukka.