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在发达国家,肥胖是儿童健康面临的主要公共卫生问题。目前,美国有30%以上的2~19岁儿童青少年超重,极度肥胖的发病率是1980年的3倍。研究证明,体力活动减少、静坐行为增加是成年期肥胖的独立预测因素,而童年期保持良好的体育活动和生活方式能够防止成年期向心性肥胖的增加。为调查9个月体力活动干预对青春期前儿童心肺功能和肥胖的影响,美国伊利诺伊大学运动功能和社区卫生学系的Khan采用随机对照试验的方法,在伊利诺斯州东中部招募7所学校中的8~9岁儿童,参加为期9个月的课后体力活动研究试验(fitness improves thinking in kids,FITKids)。将220名儿童
In developed countries, obesity is a major public health problem for children’s health. At present, more than 30% of children aged 2-19 in the United States are overweight and their incidence of extreme obesity is three times that of 1980. Studies have shown that reduced physical activity and increased sit-in behavior are independent predictors of obesity in adulthood, while maintaining good physical activity and lifestyle in childhood prevents the increase of adolescent central obesity. To investigate the effect of 9-month physical activity intervention on cardiorespiratory function and obesity in pre-adolescent children, Khan of the Department of Motor Function and Community Health Sciences at the University of Illinois, Illinois, recruited 7 schools in eastern Illinois using a randomized controlled trial Of 8 to 9 year old children participated in a 9-month fitness improves thinking in kids (FITKids). Will be 220 children