From Argentina to Zambia, Regina Guthold of the World Health Organization in Geneva and her colleagues found most children weren't getting enough exercise and that it made no difference if they lived in a rich or a poor country.“With regards to physical activities levels, we did not find much of a difference between poor and rich countries,”Guthold said.“Growing up in a poor country does not necessarily mean that kids get more physical activities.”The study was published in The Journal of Pediatrics, looking at 72,845 schoolchildren aged 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 recommendation, 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.
【2017届高考英语一轮总复习精选测试题北师大版必修五Unit 14 A卷】相关文章:
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 9 A卷 Word版含解析
★ 2017届高考英语二轮复习大题冲关秘籍完形填空之夹叙夹议文:创新押题(含解析)
★ 【浙江专用】2014届高考英语一轮复习课时作业(二十九)选修6Unit 4《Global warming》
★ 【三维设计】2017届高考英语(江苏专用)二轮复习素材:高考单词1.读美文记单词
★ 2017届高考英语二轮复习大题冲关秘籍语法填空:名校模拟(含解析)
★ 【人教版】2014届高考英语一轮复习指导考点针对练:必修1 unit3《Travel journal》
★ 【人教版】2014届高考英语一轮复习指导考点针对练:选修7 unit4《Sharing》
★ 2014届高考英语一轮复习课时作业(四十五)选修8Module 3《Foreign Food》(外研版)
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21