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SSS 2011-10-11

时间:2011-11-01 08:00来源:互联网 提供网友:gmeng   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 Cynthia Graber. This will just take a minute.

 
It sounds either really crazy, or kind of obvious. But according to new research, pick-up soccer could help homeless men avert1 the risk of an early death.
 
Homeless people are known to have poor health and life expectancy2. Due to a variety of factors, including in large part cardiovascular disease. The homeless have high levels of hypertension and are more likely to be addicted3 to smoking, alcohol and other drugs. They also don't spend much time in high-intensity physical exercise. Gyms, even when free, haven't proven to be appealing.
 
So researchers recruited 55 homeless men living in Copenhagen to join in the soccer study. Half were assigned pick-up games, two or three times a week, for 12 weeks. And half served as the control. The scientists measured the men's body composition, blood lipid profile, blood pressure and maximal oxygen uptake before and after.
 
Those who played soccer reduced their body fat and LDL cholesterol4. Perhaps most significantly, their maximal oxygen uptake increased 11 percent. The study is in the European Journal of Applied5 Physiology6
 
Previous studies suggest that such an oxygen increase can greatly lower the risk of death. That's a game with a win-win outcome.
 
Thanks for the minute. For Scientific American's 60-Second Science, I'm Cynthia Graber.

点击收听单词发音收听单词发音  

1 avert 7u4zj     
v.防止,避免;转移(目光、注意力等)
参考例句:
  • He managed to avert suspicion.他设法避嫌。
  • I would do what I could to avert it.我会尽力去避免发生这种情况。
2 expectancy tlMys     
n.期望,预期,(根据概率统计求得)预期数额
参考例句:
  • Japanese people have a very high life expectancy.日本人的平均寿命非常长。
  • The atomosphere of tense expectancy sobered everyone.这种期望的紧张气氛使每个人变得严肃起来。
3 addicted dzizmY     
adj.沉溺于....的,对...上瘾的
参考例句:
  • He was addicted to heroin at the age of 17.他17岁的时候对海洛因上了瘾。
  • She's become addicted to love stories.她迷上了爱情小说。
4 cholesterol qrzzV     
n.(U)胆固醇
参考例句:
  • There is cholesterol in the cell of body.人体细胞里有胆固醇。
  • They are determining the serum-protein and cholesterol levels.他们正在测定血清蛋白和胆固醇的浓度。
5 applied Tz2zXA     
adj.应用的;v.应用,适用
参考例句:
  • She plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
6 physiology uAfyL     
n.生理学,生理机能
参考例句:
  • He bought a book about physiology.他买了一本生理学方面的书。
  • He was awarded the Nobel Prize for achievements in physiology.他因生理学方面的建树而被授予诺贝尔奖。
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