Association of sedentary bouts with cardiometabolic risk factors among children aged 7 to 12 years in Guangzhou
10.16835/j.cnki.1000-9817.2021.08.005
- VernacularTitle:广州市小学生静态回合与心血管代谢危险因素的关系
- Author:
TAN Kaiyun, GUI Zhaohuan, ZHANG Jingshu, CHEN Yajun
1
Author Information
1. Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou(510080), China
- Publication Type:期刊文章
- Keywords:
Behavior;
Cardiovascular system;
Physical examination;
Regression analysis;
Students
- From:
Chinese Journal of School Health
2021;42(8):1140-1143
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the association between sedentary bouts and cardiovascular disease (CVD) risk factors, and to provide a reference for controlling and reducing the incidence of CVD in children.
Methods:Cluster random sampling was used to select 356 students from five primary schools in Guangzhou. Sedentary behavior and physical activity were assessed using ActiGraph GT3X accelerometers, which were worn for 7 consecutive days. According to the sedentary bout duration of each participant, sedentary time was classified into categories of 1-<5, 5-<10, 10-<15, 15-<20 and ≥20 min bouts. Physical examinations were carried out to identify cardiometabolic risk factors. Multivariate linear regression was performed to analyze the relationship between sedentary bouts and CVD risk factors.
Results:After adjusting for confounding factors, the time accumulated in sedentary bouts of 5-<10, 10-<15, 15-<20 min in duration were positively associated with higher cardiometabolic risk scores ( B =1.24， 2.01 ，2.40), negatively associated with lower HDL ( B =-0.13，-0.21，-0.27). The time accumulated in sedentary bouts of 1-<5, 5-<10 , 10-<15, 15-<20 min in duration were positively associated with BMI levels ( B =1.07，1.89，2.86，3.65), and waist circumference ( B =2.79，4.81，8.04，10.14)( P <0.05).
Conclusion:These results suggested that sedentary bouts of 5-<20 min were associated with an unfavorable cardiometabolic risk profile. Our finding suggests no more than 20 min accumulated sedentary time for children.
