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      Effect of a dietary and exercise intervention on children’s cognition and behaviors: the mediating role of family support

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          Abstract

          Objective To evaluate the effect of a dietary and exercise intervention on cognition and behaviors among primary school students, and to further explore the mediating role of family support, in order to provide scientific evidence for future effective intervention strategies.

          Methods A dietary and exercise intervention program for childhood obesity prevention was carried out in 24 primary schools in Beijing, Changzhi and Urumqi from 2018 to 2019, and 1 392 children in grade four as well as their parents were included. Family support and children’s cognition and behaviors were collected through questionnaire. To carry out diet and exercise behavior intervention on the three levels of school, family and individual in the intervention group, and children’s dietary and exercise knowledge, eating habits, physical activities, as well as sedentary and screen behaviors were evaluated. The linear mixed model was used to analyze the effect of intervention on children’s cognition and behaviors, and the mediation model was used to explore the role of family support.

          Results The proportion of children with higher score of dietary and exercise knowledge ( OR = 2.34, 95% CI = 1.71–3.21), eating habits ( OR = 2.58, 95% CI = 1.75–3.82), and sedentary and screen behaviors ( OR =1.91, 95% CI = 1.35–2.68) increased in the intervention group after one-year intervention ( P<0.01), compared with the control group, respectively. The intervention also increased the proportion of children’s family support in the intervention group compared with the control group ( OR =3.45, 95% CI = 2.19–5.45), and the support from children’s fathers ( OR = 2.70, = 1.68–4.35), mothers ( OR =3.71, 95% CI = 2.28–6.04), paternal grandmothers ( OR = 1.65, 95% CI = 1.00–2.70), and maternal grandmothers ( OR = 2.14, 95% CI = 2.12–2.16) increased significantly ( P<0.05). The mediation analysis showed that family support played a mediating role in association between comprehensive intervention and children’s eating habits as well as sedentary and screen behaviors.

          Conclusion The dietary and exercise intervention effectively promoted children’s cognition and behaviors, and family support played an important mediating role.

          Abstract

          【摘要】 目的 评估儿童饮食运动行为干预对其认知和行为的影响, 并探究家庭支持的中介作用, 以期为有效的儿童肥 胖干预策略提供科学依据。 方法 基于 2018—2019 年在北京、长治、乌鲁木齐 24 所小学共 1 392 名四年级学生及其家长 中开展的儿童饮食运动行为干预项目, 通过问卷调査收集家长的支持情况以及儿童的认知和行为。在学校一家庭一个人 3个层面上对干预组儿童开展饮食运动行为干预, 对儿童的饮食运动知识、饮食习惯、运动行为、静坐视屏行为进行评估, 采用线性混合效应模型先分析干预对儿童认知和行为评分的作用, 再探讨家庭支持的中介作用。 结果 干预 1 年后, 相比 对照组, 干预组饮食运动知识评分髙 ( OR = 2.34, 95% CI=1.71~3.21)、饮食习惯评分髙 ( OR = 2.58, 95% CI =1.75~3.82) 和静 坐视屏评分髙 ( OR =1.91, 95% CI=1.35~2.68) 的儿童比例明显升髙 ( P 值均<0.01), 干预组儿童存在家庭支持的比例提髙 ( OR = 3.45, 95% CI=2.19~5.45), 其中父亲 ( OR = 2.70, 95% CI=1.68~4.35)、母亲 ( OR = 3.71, 95% CI=2.28~6.04)、祖母 ( OR =1.65, 95% CI=1.00~2.70) 和外祖母 ( OR = 2.14, 95% CI=2.12~2.16) 支持儿童控制体重的比例提髙 ( P 值均<0.05)。中介作用分析显示, 家庭支持在综合干预与儿童饮食习惯和静坐视屏评分的关联中存在中介作用。 结论 儿童饮食运动 行为干预可促进其认知和行为, 家庭支持是重要的中介因素。将家庭干预纳人儿童肥胖综合防控策略可提髙儿童饮食运 动行为的干预效果。

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          Author and article information

          Journal
          CJSH
          Chinese Journal of School Health
          Chinese Journal of School Health (China )
          1000-9817
          01 November 2022
          01 November 2022
          : 43
          : 11
          : 1609-1612
          Affiliations
          [1] 1Department of Maternal and Child Health, School of Public Health, Peking University, Beijing (100191), China
          Author notes
          *Corresponding author: LIU Zheng, E-mail: liuzheng@ 123456bjmu.edu.cn
          Article
          j.cnki.1000-9817.2022.11.003
          10.16835/j.cnki.1000-9817.2022.11.003
          53d79aa9-d7aa-4b63-a66f-a0529a70559a
          © 2022 Chinese Journal of School Health

          This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 Unported License (CC BY-NC 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. See https://creativecommons.org/licenses/by-nc/4.0/.

          Product
          Self URI (journal-page): http://www.cjsh.org.cn
          Categories
          Journal Article

          Ophthalmology & Optometry,Pediatrics,Nutrition & Dietetics,Clinical Psychology & Psychiatry,Public health
          Food habits,Family,Motor activity,Intervention studies,Knowledge,Child

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