基于体力活动、久坐预测不同海拔7∼12岁学生肥胖的风险切点  

Prediction of Risk Cutoff Points for Obesity Among Students Aged 7∼12 at Different Altitudes based on Physical Activity and Sedentary Time

作　　者：韩涛 朱元宝 HAN Tao;ZHU Yuanbao(College of physical education,Kashi University,Kashi 844000,China;Pandir Township Health Center,Tashkurgan Tajik Autonomous County,Kashi 844000,China)

机构地区：[1]喀什大学体育学院,新疆喀什844000 [2]塔什库尔干塔吉克自治县班迪尔乡卫生院,新疆喀什844000

出　　处：《高原科学研究》2024年第1期84-91,共8页Plateau Science Research

基　　金：新疆维吾尔自治区高校科技计划项目(XJEDU2021SY040).

摘　　要：目的:为探究不同海拔7∼12岁学生体力活动、久坐行为与肥胖的关联性,预测肥胖的体力活动、久坐时间风险切点。方法:以世居平原及世居高原各720名7∼12岁学生为研究对象,通过形态学测试及体力活动测评,确定不同海拔7∼12岁学生肥胖风险的体力活动、久坐时间切点值。结果:随年龄增长,不同海拔7∼12岁学生BMI水平呈上升趋势、WHR水平呈下降趋势;高海拔学生检出率为10.00%、低海拔为12.36%,海拔间检出率存在显著差异(χ^(2)=8.167,P<0.05)。随年龄增长,各组男、女生体力活动相关指标及ST均呈上升趋势;低海拔地区7∼12岁学生LPA、MPA、VPA、MVPA及TPA水平均显著高于高海拔地区(P<0.05),ST水平显著低于高海拔地区(P<0.05)。随BMI上升,体力活动指标均呈先增长后下降的趋势,ST水平呈先下降后增长的趋势;高海拔、低海拔男女生LPA、MPA、VPA、MVPA、TPA水平及ST水平均与BMI存在关联性(P<0.05);高海拔、低海拔7∼12岁学生MPA、MVPA、ST水平与BMI存在显著关联。各组男、女生MVPA及ST预测肥胖的切点值分别为97.42 min^(-1)、735.46 min^(-1)、88.59 min^(-1)、771.30 min^(-1)、115.34 min^(-1)、691.92 min^(-1)、92.71 min^(-1)、720.45min^(-1)。结论:体力活动、久坐时间指标与不同海拔7∼12岁学生肥胖发生率存在显著关联,高原7∼12岁男、女生久坐时间切点值高于同龄平原学生,平原7∼12岁男、女生MVPA切点值高于同龄高原学生。Objective To explore the correlation between physical activity,sedentary behavior,and obesity among students aged 7∼12 at different altitudes,and to predict the risk cutoff points for physical activity and sedentary time in obesity.Method A total of 720 students aged 7∼12 years old,residing in the plain and pla-teau respectively,were selected as the research subjects.Through morphological testing and physical activity as-sessment,the physical activity and sedentary time cutoff values of obesity risk for students aged 7∼12 years old at different altitudes were determined.Result As age increases,BMI levels of students aged 7∼12 at different altitudes show an upward trend,while WHR levels show a downward trend;The detection rate of high altitude students is 10.00%,and that of low altitude students is 12.36%,with significant differences in detection rates be-2 tween altitudes(χ=8.167,P<0.05).As age increases,the physical activity related indicators and ST of both males and females in each group show an upward trend;The levels of LPA,MPA,VPA,MVPA,and TPA among students aged 7∼12 in low altitude areas were significantly higher than those in high altitude areas(P<0.05),while ST levels were significantly lower than those in high altitude areas(P<0.05).As BMI increases,physical ac-tivity indicators show a trend of first increasing and then decreasing,while ST levels show a trend of first decreas-ing and then increasing;There is a correlation between the levels of LPA,MPA,VPA,MVPA,TPA,and ST in high altitude and low altitude male and female students and BMI(P<0.05);There is a significant correlation be-tween the levels of MPA,MVPA,ST and BMI among students aged 7∼12 at high and low altitudes.The cutoff values of MVPA and ST for predicting obesity in male and female groups were 97.42 min^(-1),735.46 min^(-1),88.59 min^(-1),771.30 min^(-1),115.34 min^(-1),691.92 min^(-1),92.71 min^(-1),and 720.45 min^(-1),respectively.Conclusion There is a significant correlation between physical activity and sedentary time indi

关 键 词：海拔 7∼12岁学生 体力活动 久坐时间 身体质量指数 肥胖 

分 类 号：R723.14[医药卫生—儿科]