骑自行车对膝盖有好处

Bicycle riding is a great way to keep fit and healthy. It is good for our heartand our mental1 health. It also helps to keep our weight2 down. It is a little-knownsurprise that bicycle riding is good for our knees. A new study says people oftenriding a bicycle have less knee pain3 when they get older.

骑自行车是保持健康的好方法。骑自行车对我们的心脏和精神健康有好处，也有利于减轻我们的体重。骑自行车对我们的膝盖有好处，这是一个鲜为人知的惊喜。一项新的研究表明，经常骑自行车的人年老时膝盖疼痛会减轻。

Researchers4 from Baylor College of Medicine in the USA did the study.They looked at 2，600 men and women， with an average5 age of 64. They askedthe people about their levels6 of sports activity. They also took X -rays7 of thepeople’s knees. The researchers checked the X-rays to look for signs8 ofarthritis9 in the knees.

美国贝勒医学院的研究人员进行了这项研究。他们调查了2600 名平均年龄为64 岁的男性和女性。他们询问这些人的体育活动水平，还对他们的膝盖进行了X 光检查。这些研究人员检查X 光片是为了寻找膝盖关节炎的症状。

Researcher Dr. Grace Lo was surprised by what they found. She said peopleoften riding a bicycle were 21% less likely10 to have a joint11 problem in their kneescalled osteoarthritis12. This is often called “wear-and-tear”arthritis. It is usual tosee in our daily life. She added， she was surprised to see how much good riding abicycle could do. This happens when we use our joints a lot. The joints wear out andstart to feel pain.

研究员格雷丝·洛医生对他们的发现感到惊讶。她说，经常骑自行车的人患膝关节骨关节炎的可能性降低了21%。这通常被称为“磨损性”关节炎，在我们日常生活中很常见。她补充说，发现骑自行车能有这么多好处让她很惊讶。当我们过度使用关节时，就会得磨损性关节炎。关节被磨损过度，人就开始感到疼痛。

Osteoarthritis usually starts when people are in their fifties. Dr. Lo said riding abicycle was a great way of stopping arthritis. A lot of studies shows that people oftenriding a bicycle are about 20% less likely to die too early.

骨关节炎通常在人们五十多岁时发病。洛医生说骑自行车是预防关节炎的好方法。大量研究表明，经常骑自行车的人过早死亡的可能性会降低约20%。