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SSS 2010-11-29

时间:2010-12-07 07:27来源:互联网 提供网友:seniorboy   字体: [ ]
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    (单词翻译:双击或拖选)

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?
For some reason, every year a few dozen runners dash from southern Italy all the way to the North Cape1 of Norway, in what's called the TransEurope-FootRace. It takes about two months to cover the almost 2,800 miles, about 45 miles a day.
In the 2009 edition, 44 of the 66 participants allowed themselves to be examined medically throughout. The findings were presented November 29th at the annual meeting of the Radiological Society of North America in Chicago. And some of the discoveries may be of use to the less ambitious2 among us.
Muscle volume of the legs actually went down 7 percent because of the incredible3 energy consumption4 of the daily distances. And some leg injuries were found to be safe to run through. It was okay to keep going with simple leg muscle inflammation, for example. But other overuse injuries, like joint5 inflammation, carried a greater risk of worsening. Runners lost 40 percent of their body fat in the first half of the race and 50 percent altogether. Beginning runners can likewise expect to see a rapid fat loss at first. And you get to stop before reaching Norway.
Thanks for the minute. For Scientific American's 60-Second Science, I'm Steve Mirsky.


点击收听单词发音收听单词发音  

1 cape ITEy6     
n.海角,岬;披肩,短披风
参考例句:
  • I long for a trip to the Cape of Good Hope.我渴望到好望角去旅行。
  • She was wearing a cape over her dress.她在外套上披着一件披肩。
2 ambitious GxIzU     
adj.有雄心的,劲头十足的,有野心的
参考例句:
  • One may be poor but never ceases to be ambitious.人穷志不穷。
  • He is an ambitious young man full of enthusiasm and vitality.他是个充满热情与活力的有远大抱负的青年。
3 incredible q8fx7     
adj.难以置信的,不可信的,极好的,大量的
参考例句:
  • Some planets run at incredible speed.某些星球以难以置信的速度运行着。
  • Her answer showed the most incredible stupidity.她的回答显示出不可思议的愚蠢。
4 consumption 3ZVym     
n.消费,消耗,消费额,消耗量,结核病
参考例句:
  • Consumption of oil has declined in recent years.石油消耗量在最近几年下降了。
  • The meat was condemned as unfit for human consumption.这种肉已被宣布不适宜人们食用。
5 joint m3lx4     
adj.联合的,共同的;n.关节,接合处;v.连接,贴合
参考例句:
  • I had a bad fall,which put my shoulder out of joint.我重重地摔了一跤,肩膀脫臼了。
  • We wrote a letter in joint names.我们联名写了封信。
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