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 obese and overweight persons found that this group of people had higher risk of knee-osteoarthritis than normal weight persons, and yet exercise would not increase the likelihood of developping such disease.
