一項針對超重和肥胖人群的研究發現，該類人群罹患膝關節骨性關節炎的風險遠高於正常體重的人群，但體育鍛煉並不會增大這種風險。
A study of people who are overweight and obesse shows that these people are at higher risk than those of average weight in suffering from arthritis in the knee, while physical exercises may not increase the risk.
