广州市小学生静态回合与心血管代谢危险因素的关系

谭恺韫; 桂曌环; 张婧姝; 陈亚军

doi:10.16835/j.cnki.1000-9817.2021.08.005

广州市小学生静态回合与心血管代谢危险因素的关系

doi: 10.16835/j.cnki.1000-9817.2021.08.005

中山大学公共卫生学院妇幼卫生学系，广东广州 510080

基金项目:

国家自然科学基金面上项目 81673193

广东省自然科学基金面上项目 2019A1515011462

详细信息

作者简介:
谭恺韫(1995-)，女，广东广州人，在读硕士，主要研究方向为儿童体力活动与体质健康及慢性病

通讯作者:
陈亚军，E-mail：chenyj68@mail.sysu.edu.cn

中图分类号: R446 R179 R725.4
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- 被引次数: 0
出版历程
- 收稿日期: 2020-11-19
- 修回日期: 2021-02-26
- 网络出版日期: 2021-08-20
- 刊出日期: 2021-08-25

Association of sedentary bouts with cardiometabolic risk factors among children aged 7 to 12 years in Guangzhou

Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou(510080), China

摘要

摘要: 目的了解广州市7~12岁儿童不同时长静态回合与心血管代谢危险因素的关系，为儿童心血管疾病的防控提供科学依据。方法采用整群随机抽样的方法，于2017年抽取广州市5所小学共356名学生作为研究对象。要求受试者连续7 d佩戴加速度计对静态行为和体力活动进行客观测量。对每名受试者的静态回合进行长度划分。通过体格检查、实验室检测收集受试者的心血管代谢危险因素指标。采用多重线性回归分析静态回合与心血管代谢危险因素的关系。结果广州市7~12岁儿童的静态行为时间主要由 < 10 min的短时静态回合累积而成。5~ < 10，10~ < 15，15~ < 20 min静态回合的累积时间与心血管代谢危险因素得分呈正相关(B值分别为1.24，2.01，2.40)，与高密度脂蛋白胆固醇(B值分别为-0.13，-0.21，-0.27)呈负相关; 1~ < 5，5~ < 10，10~ < 15，15~ < 20 min静态回合的累积时间与体质量指数(BMI)(B值分别为1.07，1.89，2.86，3.65)和腰围(B值分别为2.79，4.81，8.04，10.14)呈正相关(P值均 < 0.05)。结论 5~ < 20 min的持续性静态行为增加儿童心血管健康风险，儿童应减少20 min以内的持续性静态行为。
- 行为 /
- 心血管系统 /
- 体格检查 /
- 回归分析 /
- 学生
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.
- Behavior /
- Cardiovascular system /
- Physical examination /
- Regression analysis /
- Students

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表 1 不同静态回合时长小学生静态回合特征(n=356)

Table 1. Descriptive characteristics of sedentary bout in different duration of primary school students(n=356)

静态回合时长/min	每天回合数量/ (个·d^-1)	回合累积时长/ (min·d^-1)	回合累积时长占静态行为总时长的百分比/%	回合累积时长占佩戴时间的百分比/%	平均回合时长/min
1~ < 5	63.1±11.3	147.0±29.7	28.9±4.5	18.1±3.4	2.3±0.1
5~ < 10	11.7±5.4	75.8±35.9	14.5±5.8	9.3±4.3	6.4±0.2
10~ < 15	2.4±1.7	28.0±19.9	5.3±3.3	3.4±2.4	11.8±0.5
15~ < 20	0.9±0.7	14.8±11.1	2.8±1.8	1.8±1.3	16.9±0.9
≥20	1.1±0.7	35.8±20.6	6.9±3.7	4.4±2.5	33.9±6.7

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表 2 不同静态回合累积时长与小学生心血管代谢危险因素的多重线性分析[B值(B值95%CI)，n=356]

Table 2. Associations between time accumulated in sedentary bouts with cardiometabolic risk factors and continuous cardiometabolic risk score of primary school students[B(B 95%CI), n=356]

因变量	模型1					模型2
因变量	1~ < 5 min	5~ < 10 min	10~ < 15 min	15~ < 20 min	≥20 min	模型2
心血管代谢危险因素得分	0.68(-0.07~1.42)	1.24(0.52~1.97)^*	2.01(0.80~3.21)^*	2.40(0.38~4.42)^*	0.10(-0.86~1.05)	-2.98(-7.22~1.26)
BMI	1.07(0.34~1.81)^*	1.89(1.18~2.60)^*	2.86(1.68~4.04)^*	3.65(1.64~5.67)^*	0.55(-0.41~1.50)	-0.27(-0.65~0.11)
腰围	2.79(0.75~4.83)^*	4.81(2.85~6.78)^*	8.04(4.79~11.29)^*	10.14(4.57~15.71)^*	1.31(-1.33~3.94)	-0.80(-1.84~0.25)
总胆固醇	0.24(0.05~0.43)	0.05(-0.14~0.23)	-0.10(-0.42~0.21)	-0.28(-0.79~0.24)	-0.16(-0.40~0.08)	0.06(-0.04~0.16)
高密度脂蛋白胆固醇	0.02(-0.06~0.10)	-0.13(-0.21~-0.06)^*	-0.21(-0.33~-0.08)^*	-0.27(-0.48~-0.07)^*	-0.09(-0.19~0.02)	0.03(-0.01~0.07)
三酰甘油	0.04(-0.05~0.13)	0.07(-0.03~0.16)	0.11(-0.04~0.27)	0.02(-0.24~0.27)	-0.06(-0.17~0.07)	0.01(-0.04~0.06)
空腹血糖	0.03(-0.07~0.14)	-0.07(-0.17~0.03)	-0.06(-0.23~0.11)	0.00(-0.29~0.29)	-0.04(-0.17~0.10)	0.05(0.00~0.11)
收缩压	-1.60(-4.35~1.16)	-0.25(-2.96~ 2.47)	0.96(-3.52~5.44)	4.90(-2.52~12.31)	2.26(-1.25~5.76)	-0.44(-1.84~0.95)
舒张压	0.47(-1.58~2.52)	1.72(-0.29~3.73)	2.05(-1.25~5.35)	3.62(-1.82~9.06)	-1.56(-4.16~1.04)	0.26(-0.77~1.30)
注：*P < 0.05;模型1调整父母受教育水平、家庭月收入水平、家族心血管代谢性疾病史、MVPA和静态行为总时长; 模型2调整父母受教育水平、家庭月收入水平、家族心血管代谢性疾病史和MVPA。

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