| 天津初中生体力活动与体脂肪指标的相关性 |
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| 引用本文： | 刘洲,王剑,张晓丹. 天津初中生体力活动与体脂肪指标的相关性[J]. 中国学校卫生, 2019, 40(8): 1190-1193. DOI: 10.16835/j.cnki.1000-9817.2019.08.019 |
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| 作者姓名： | 刘洲 王剑 张晓丹 |
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| 作者单位： | 天津体育学院体育教育与教育科学学院,天津,301617 |
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| 基金项目： | 中国大学生体协科研项目(201713512);天津市高校人文社科项目(2017SK069) |
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| 摘 要： | 目的探讨青春期学生体力活动与体脂肪指标的相关性,为改善国内青少年超重肥胖现象以及为干预策略的制定提供理论依据。方法在天津市实验中学、天津市四十一中学、天津师范大学附属中学招募366名初中生,采用ActiGraPh-GT3X加速度计采集7 d日常体力活动数据,采用InBody 520人体成分分析仪测量身体成分,采用Pearson偏相关分析体力活动水平与体脂肪指标之间的相关性。结果男、女生年龄、体质量指数(BMI)、腰围身高比、脂肪含量差异均无统计学意义(P值均>0.05),男生体脂百分比低于女生(t=-4.73,P<0.01);不同性别学生轻体力活动(light physical activity,LPA)时间差异无统计学意义(P>0.05),男生中等强度体力活动(moderate physical activity,MPA)、中高强度体力活动(moderate-to-vigorous physical activity,MVPA)、高强度体力活动(vigorous physical activity,VPA)时间均高于女生,久坐时间低于女生(t值分别为2.64,3.23,4.24,-2.85,P值均<0.01);男、女生超重组和肥胖组LPA,MPA,MVPA,VPA时间均低于正常组,但久坐时间高于正常组(F值分别为14.63,15.54,P值均<0.05)。男、女生腰围身高比、脂肪含量、体脂百分比与久坐时间均呈正相关,与LPA,MPA,MVPA时间均呈负相关(P值均<0.05)。结论男生体脂百分比低于女生且体力活动水平更高,正常体重青少年比超重、肥胖青少年体力活动水平更高。长期坚持一定的体力活动并适当减少久坐时间,对于青少年有效控制体重、预防慢性疾病有着至关重要的作用。
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| 关 键 词： | 青春期 运动活动 体脂肪率 学生 |
Optimal relationship between physical activity and body fat indexes during puberty |
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| LIU Zhou,WANG Jian,ZHANG Xiaodan. Optimal relationship between physical activity and body fat indexes during puberty[J]. Chinese Journal of School Health, 2019, 40(8): 1190-1193. DOI: 10.16835/j.cnki.1000-9817.2019.08.019 |
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| Authors: | LIU Zhou WANG Jian ZHANG Xiaodan |
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| Affiliation: | (School of Physical Education and Education Science,Tianjin University of Sport,Tianjin (301617),China) |
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| Abstract: | Objective To explore the optimal correlation between physical activity and body fat indexes during pubertal transition,and to provide a reference for reducing obesity of adolescents and making the interventional measures. Methods A total of 366 junior high school students were recruited. ActiGraPh-GT3 X accelerometer was used to collect daily physical activity data for 7 days. InBody 520 was used to assess body composition. Pearson partial correlation was used to analyze the correlation between physical activity level and body composition. Curve fitting was used to construct the optimal model of physical activity and body fat index. Results There was no gender difference in waist height ratio and fat mass between boys and girls(P>0.05), and the percentage of body fat in boys was significantly lower than that in girls(t=-4.73,P<0.01). There was no gender difference in light physical activity(LPA) time between boys and girls(P>0.05).The time of moderate physical activity(MPA), moderate-to-vigorous physical activity(MVPA) and vigorous physical activity(VPA) in boys was significantly higher than that in girls(P<0.01).The sedentary time in boys was significantly lower than that in girls(t=2.64,3.23,4.24,-2.85,P<0.01). For overweight and obese group, less time was spent in LPA, MPA, MVPA and VPA compared with normal group, while more time spent in sedentary time. Waist height ratio, fat mass and body fat percentage among male and female adolescents were positively correlated with sedentary time(F=14.63,15.54,P<0.01), while negatively correlated with LPA, MPA and MVPA time(P<0.05). Conclusion The body fat percentage was higher in boys than in girls,and the level of physical acitivity was even higher in boys than in girls.The adolescents of normal weight has got a higher level of physical activity than over weight or obese adolescents. Long-term adherence to certain physical activities and appropriate reduction of sedentary time are of vital importance for teenagers to effectively control their weight and prevent chronic diseases. |
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| Keywords: | Puberty Motor activity Adiposity Students |
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