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

Physical 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...

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Bibliographic Details
Published in:BMC public health 2016-03, Vol.16 (209), p.205-205, Article 205
Main Authors: Mei, Hong, Xiong, Yuelin, Xie, Shuixian, Guo, Siyu, Li, Yukun, Guo, Bingbing, Zhang, Jianduan
Format: Article
Language:English
Subjects:
Body mass
Body Mass Index
Body size
Child
Children
Educational programs
Effectiveness
Elementary school students
Evaluation
Exercise
Health aspects
Health promotion
Heterogeneity
Homogeneity
Humans
Intervention
Measurement
Meta-analysis
Methods
Motor Activity
Obesity
Pediatric Obesity - prevention & control
Physical activity
Program Evaluation
Public health
Randomization
Randomized controlled trail
Randomized Controlled Trials as Topic
School Health Services
School-based intervention
Schools
Scientific papers
Students
Studies
Time Factors
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Summary:Physical 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. Original 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. Out 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 
ISSN:1471-2458
1471-2458
DOI:10.1186/s12889-016-2829-z