Evidence map›Paper›PMID 26931236›Full record

SynthesisBMC public health2016

The impact of long-term school-based physical activity interventions on body mass index of primary school children - a meta-analysis of randomized controlled trials.

Hong Mei, Yuelin Xiong, Shuixian Xie, Siyu Guo, Yukun Li, Bingbing Guo, Jianduan Zhang

Registry-linked trialAbstract readMeta-AnalysisReview
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in BMC public health, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03459742 (A Gamification Strategy to Reduce Childhood Obesity in Santiago Schools), which is not on this map. Cited by 42 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 8 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03459742 naunknown statusnot on this mapstarted 2018, after this paper: background citation

A Gamification Strategy to Reduce Childhood Obesity in Santiago Schools: a Cluster Randomized Controlled Trial

TypeinterventionalSponsorMunicipality of SantiagoRan2018 to 2019Enrolled12,000ConditionsPediatric ObesityArmsGamification strategy
3 · Its place in the literature

Who cites it

42 citing papers in PubMed, 8 syntheses or guidelines pooled it.

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  7. The 2017 Dutch Physical Activity Guidelines.The international journal of behavioral nutrition and physical activity · 2018
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  11. The Nexus of Sports-Based Development and Education of Mental Health and Physical Fitness.International journal of environmental research and public health · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Hong MeiDepartment Woman and Child's Care and Adolescent Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, P.R. China. annymei2012@gmail.com.
Yuelin XiongDepartment Woman and Child's Care and Adolescent Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, P.R. China. 1158528817@qq.com.
Shuixian XieDepartment Woman and Child's Care and Adolescent Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, P.R. China. 1002824202@qq.com.
Siyu GuoDepartment Woman and Child's Care and Adolescent Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, P.R. China. 460462716@qq.com.
Yukun LiDepartment Woman and Child's Care and Adolescent Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, P.R. China. lykzjs@163.com.
Bingbing GuoDepartment Woman and Child's Care and Adolescent Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, P.R. China. 418412217@qq.com.
Jianduan ZhangDepartment Woman and Child's Care and Adolescent Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Rd., Wuhan, 430030, Hubei, P.R. China. jd_zh@hust.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPhysical activity (PA) intervention is a commonly recommended strategy to combat childhood obesity. However, its effectiveness has long been controversial. This paper aims to examine the effectiveness of long-term (≥12 months) school-based PA interventions on body mass index (BMI) in primary school children, who are gaining BMI.

methodsOriginal papers were retrieved from PubMed, Google Scholar, the Cochrane Library and Web of Science, published between 1990 and 2015. The inclusion criteria were those research studies that were: randomized controlled trials (RCTs), conducted in primary school settings, had valid data on BMI at baseline and at the final follow up (or on BMI changes), and involved PA intervention that lasted for at least 12 months.

resultsOut of 11,158 potentially eligible articles, 18 papers were included in the analysis, involving 22,381 primary school children with intervention durations ranging from 12 to 72 months. Compared to the control groups, the BMI increment was 2.23 kg/m(2) less in the intervention groups (p < 0.05). The heterogeneity was high across the studies (99.8 %), but declined after sub-group analyses. The intervention type, intervention duration, and weekly PA intervention time were among the factors leading to the heterogeneity.

conclusionLong-term school-based interventions containing PA as a core component appear to be effective in achieving healthier BMI. However, the results should be interpreted with caution due to the high heterogeneity among the studies. More high quality school-based RCTs among diverse populations are needed to improve the homogeneity and to yield a more robust conclusion.

Indexed as

Body Mass IndexMotor ActivitySchool Health ServicesChildHumansPediatric ObesityProgram EvaluationRandomized Controlled Trials as TopicSchoolsTime Factors

Identifiers

PMID26931236
PMCPMC4774105

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.