摘要
目的了解成都市儿童青少年静态生活方式及体格现状。方法采用整群随机抽样法,抽取成都市2164名7~15岁儿童青少年进行身高、体重等的测量,同时使用自行设计体力活动问卷进行调查,了解儿童青少年的静态生活方式。结果男生看电视、使用电脑及做家庭作业时间均长于女生。分年龄组比较后发现,男生中,13~15岁年龄组看电视、使用电脑及做家庭作业三种静态生活方式的时间均长于10~12岁及7~9岁。女生中表现出相同趋势。体质指数z评分（BMI z-scores）和体脂百分比（BF%）均为女生大于男生。分年龄组比较后,男生BMI z评分表现为随年龄增加而降低,BF%为10~12岁年龄组最高。女生BF%则随年龄的增加而增加（P〈0.0001）。将3种静态生活方式分别分组比较后发现,女生10~12岁组看电视和做家庭作业时间越长,其BF%值越高;13~15岁组中则表现为看电视时间越长其BMI z评分值越高（P=0.0459）。男生中不同静态生活方式组其体格情况差异无统计学意义。结论成都儿童青少年看电视、使用电脑及做家庭作业时间随着年龄的增加而增长。女生静态生活方式可能与体质指数和体脂百分比相关。
Objective To examine the situation of sedentary behaviors and anthropometric indexes among children and adolescents in Chengdu city. Methods A total of 2164 children and adolescents aged 7 -15 years old were recruited in Chengdu city by using cluster random sampling method. This study was a cross-sectional study, which aimed to collect data on anthropometry including height and weight etc. and information on sedentary behavior by using the self-designed questionnaire. Results The time spent on watching TV, using computer and doing homework was longer in boys than that in girls. After having been stratified by gender and age groups, the time spent on sedentary behaviors （including watching TV, using computer and doing homework） was longer in 13 - 15 age group than that in 10 - 12 and 7 - 9 age groups in boys. Similar results were obtained in girls. BMI z-scores and the percentage of body fat（BF% ） were higher in girls than that in boys （P 〈0. 0001）. BMI z-scores in boys decreased with increasing age after having been stratified by gender and age groups and BF% was higher in 10 - 12 age group. However, BF% in girls was increased with increasing age （P 〈0. 0001 ）. As three sedentary behaviors were classified into low/high respectively, BF% increased with the time spent on watching TV and doing homework increasing in 10 - 12 age group in girls. The time spent on watching TV increased with the BMI z-scores increasing. Conclusion The time spending on watching TV, using computer and doing homework increased with increasing age among children and adolescents in Chengdu. Sedenatry behaviors in girls may be related to BMI z-scores and BF%.
出处
《卫生研究》
CAS
CSCD
北大核心
2015年第1期53-56,共4页
Journal of Hygiene Research
基金
新世纪优秀人才支持计划(No.NCET-12-0377)
