英语翻译By Caty Weaver2010-2-2This is the VOA Special English Health Report.Two new studies suggest that modern running shoes could increase the risk of injuries to runners.One study involved sixty-eight healthy young women and men who ran at lea

英语翻译By Caty Weaver2010-2-2This is the VOA Special English Health Report.Two new studies suggest that modern running shoes could increase the risk of injuries to runners.One study involved sixty-eight healthy young women and men who ran at lea
英语翻译
By Caty Weaver
2010-2-2
This is the VOA Special English Health Report.
Two new studies suggest that modern running shoes could increase the risk of injuries to runners.
One study involved sixty-eight healthy young women and men who ran at least twenty-four kilometers a week.The runners were observed on a treadmill machine.Sometimes they wore running shoes.Other times they ran barefoot.
Researchers from the JKM Technologies company in Virginia,the University of Virginia and the University of Colorado did the study.
They found that running shoes create more stress that could damage knees,hips and ankle joints than running barefoot.They observed that the effect was even greater than the effect reported earlier for walking in high heels.
The study appeared in the official scientific journal of the American Academy of Physical Medicine.
The other study appeared in the journal Nature.It compared runners in the United States and Kenya.The researchers were from Harvard University in Massachusetts,Moi University in Kenya and the University of Glasgow in Scotland.
They divided the runners into three groups.One group had always run shoeless.Another group had always run with shoes.And the third group had changed to shoeless running.
Runners who wear shoes usually come down heel first.That puts great force on the back of the foot.But the study found that barefoot runners generally land on the front or middle of their foot.That way they ease into their landing and avoid striking their heel.
Harvard's Daniel Lieberman led the study.He says the way most running shoes are designed may explain why those who wear them land on their heels.The heel of the shoe is bigger and heavier than other parts of the shoe,so it would seem more likely to come down first.Also,the heel generally has thick material under it to soften landings.
But the researchers do not suggest that runners immediately start running barefoot.They say it takes some training.And there can be risks,like running when your feet are too cold to feel if you get injured.
The study was partly supported by Vibram,which makes a kind of footwear that it says is like running barefoot.The findings have gotten a lot of attention.But the researchers say there are many problems in the way the press has reported on their paper.So they have tried to explain their findings on a Harvard Web site.For a link,go to 51voa.com.
And that's the VOA Special English Health Report,written by Caty Weaver.I'm Steve Ember.

英语翻译By Caty Weaver2010-2-2This is the VOA Special English Health Report.Two new studies suggest that modern running shoes could increase the risk of injuries to runners.One study involved sixty-eight healthy young women and men who ran at lea
其中一项研究对68名每周至少跑步24千米的健康男女进行了调查.研究人员对这些跑步者在跑步机上进行了观察.有时他们脚穿跑鞋,其他时候则赤脚.
佛吉尼亚JKM技术公司,佛吉尼亚大学和科罗拉多州的研究人员进行了这项调查.
他们发现,穿跑鞋比赤脚跑步造成更大的压力,会损伤膝盖,臀部和踝关节.他们发现,这种影响甚至比以前报道的穿高跟鞋跑步危害更大.
该研究发表在美国物理医学会官方杂志上.
另外一份研究发表在自然期刊上.该研究对将美国和肯尼亚的跑步者进行了对比.研究人员来自马萨诸塞州哈佛大学,肯尼亚莫伊大学和苏格兰格拉斯哥大学.
他们将跑步者分为三组.其中一组一直赤脚跑步.另外一组总是穿鞋跑步.第三组则更改为赤脚跑步.
穿鞋跑步的人总是脚后跟先着地,这给脚的后部造成了很大的压力.但是研究发现,赤脚跑步者一般都是脚的中前部先着地.这样,他们可以缓解着地时的压力,避免伤害脚跟.
哈佛大学的Daniel Lieberman领导了这项研究.他表示,大多数跑鞋的设计方式解释了为什么穿跑鞋的人总是脚后跟先着地.跑鞋的脚后跟处比鞋的其他地方更大,更重,所以更有可能先着地.此外,鞋跟处添加了比较厚的材料,缓解着陆压力.
但是研究人员并不建议跑步者立即开始赤脚跑步.他们表示,这需要一些训练.而且赤脚跑步也有一些风险,例如,当受伤的时候跑步,你的脚会冷的难以忍受.
该研究部分由伐柏拉姆公司支持.该公司称产了一种鞋袜,据说穿上的感觉好像赤脚跑.这些发现引起了很多关注.但是研究人员表示,媒体在报纸上对他们的报道存在许多问题.所以,他们试图在哈佛网站上做出解释.