时间:2019-02-05 作者:英语课 分类:阅读空间


英语课

 Nearly third of children globally are couch potatoes


American children aren't the only couch potatoes with nearly one third of children globally spending three hours a day or more watching TV or on computers, according to study of over 70,000 teens in 34 nations.


From Argentina to Zambia, Regina Guthold of the World Health Organization in Geneva and her colleagues found most children aren't getting enough exercise and it made no difference if they lived in a rich or a poor country.
"With regards to physical activity levels, we did not find much of a difference between poor and rich countries," Guthold told Reuters Health. "Growing up in a poor country does not necessarily mean that kids get more physical activity."
The study, published in The Journal of Pediatrics, looking at 72,845 schoolchildren aged 1 13 to 15 from North and South America, Asia, Europe, and the Middle East. The children were surveyed between 2003 and 2007.
The researchers defined adequate physical activity as at least an hour of exercise outside of gym class at least five days a week.
Children who spent three or more hours a day watching TV, playing computer games, or chatting with friends -- aside from time in school or time spent doing homework -- were classified as sedentary.
The researchers found only one quarter of the boys and 15 percent of the girls were getting enough exercise by these definitions.
A quarter of boys and nearly 30 percent of girls were sedentary and didn't get enough exercise with girls less active than boys in every country aside from Zambia.
Uruguay had the highest percentage of active boys, at 42 percent, while Zambia had the lowest, at 8 percent.
Girls from India were the most active, with 37 percent meeting exercise recommendations, while girls from Egypt were the least active, with just 4 percent getting adequate exercise.
Children in Myanmar were the least sedentary, with 13 percent of boys and 8 percent of girls classified as sedentary. The most sedentary nations were St. Lucia and the Cayman Islands, with 58 percent of boys and 64 percent of girls spending at least three hours a day in sedentary activities.
While the study didn't look at the reasons behind the lack of physical activity in various nations, Guthold speculated that urbanization could be a factor as well as access to cars and TVs.
She said schools can help children become more active by having physical education classes and educating students about the importance of exercise.
Adding lanes for bicycles, pedestrian crossings and other changes to promote walking and biking to and from school could help too, she added.
"Even with the limitations that questionnaire data (suffer) from, I guess it's pretty safe to say that we have a huge problem with physical inactivity among schoolchildren around the globe and that we should take action," said Guthold.

adj.年老的,陈年的
  • He had put on weight and aged a little.他胖了,也老点了。
  • He is aged,but his memory is still good.他已年老,然而记忆力还好。
标签: potato
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absolute elsewhere
accept full responsibility for
active application
adneural
adsobability
advertocracy
alkali-resistant enamel
anallergenic Serum
armature cord lamination
arunta des.
askarels
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be young in the trade
boni
brucine sulfate
BTZ
bull's eye riveting
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carbon support
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chiropody
Chlanidote
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code of ethics and professional conduct
commercial waste
cost prices
Curst.
dissolutious
district man
entourage effects
Euonymus nanoides
extent of crime
extraembryonic somatopleuric mesoderm
faulty prosthesis
ferrite modulator
flow chart convention
genus musteluss
got off my chest
graduating class
grandfather's clocks
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hacks away
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hand operating crank
hematogenous osteomyelitis
herbarize
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high speed skip
hydro-cleaning installation
information model
intermediate chordotonal organ
jazz fusion
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laphria azurea
light sensitive tube
light-running fit
Malgaigne's luxation
naphthylene
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neisser-sachs' method
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