The effect of school-based physical activity interventions on body mass index: a meta-analysis of randomized trials

This study reviewed the effectiveness of school-based physical activity interventions aimed at reducing overweight, obesity and hypertension in children. We searched 14 databases and analyzed studies published between April 2009 and September 2012. Only randomized controlled trials performed at the...

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Main Authors: Paulo Henrique Guerra, Moacyr Roberto Cuce Nobre, Jonas Augusto Cardoso da Silveira, Jose Augusto de Aguiar Carrazedo Taddei
Format: Article
Language:English
Published: Elsevier España 2013-09-01
Series:Clinics
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322013000901263&lng=en&tlng=en
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author Paulo Henrique Guerra
Moacyr Roberto Cuce Nobre
Jonas Augusto Cardoso da Silveira
Jose Augusto de Aguiar Carrazedo Taddei
author_facet Paulo Henrique Guerra
Moacyr Roberto Cuce Nobre
Jonas Augusto Cardoso da Silveira
Jose Augusto de Aguiar Carrazedo Taddei
author_sort Paulo Henrique Guerra
collection DOAJ
description This study reviewed the effectiveness of school-based physical activity interventions aimed at reducing overweight, obesity and hypertension in children. We searched 14 databases and analyzed studies published between April 2009 and September 2012. Only randomized controlled trials performed at the school level that included elements of physical activity but did not include nutritional co-interventions were analyzed. Studies were assessed by two recommended tools (EPHPP and GRADE), and the standardized mean differences with 95% confidence intervals were collected for a random-effect meta-analysis. A total of 12 papers were included in the meta-analysis, and these were divided according to three outcomes: body mass index (11 trials, n  =  4,273, −0.02, 95% CI: −0.13 to 0.17, p  =  0.8); body weight (5 trials, n  =  1,330, −0.07, 95% CI: −0.18 to 0.04, p  =  0.2); and blood pressure (6 trials, n  =  1,549), including systolic (0.11, 95% CI: −0.10 to 0.31, p  =  0.3) and diastolic pressure (−0.00, 95% CI: −0.10 to 0.10, p  =  0.9). This meta-analysis of data from 11 randomized, school-based physical activity interventions suggests that, regardless of the potential benefits of physical activity in the school environment, the interventions did not have a statistically significant effect. However, it is difficult to generalize from these results because the duration, intensity and type of physical activity used in the interventions varied greatly.
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spelling doaj.art-48c892d36a554e27aa14fd6c9473c7b12022-12-22T02:40:23ZengElsevier EspañaClinics1980-53222013-09-016891263127310.6061/clinics/2013(09)14S1807-59322013000901263The effect of school-based physical activity interventions on body mass index: a meta-analysis of randomized trialsPaulo Henrique GuerraMoacyr Roberto Cuce NobreJonas Augusto Cardoso da SilveiraJose Augusto de Aguiar Carrazedo TaddeiThis study reviewed the effectiveness of school-based physical activity interventions aimed at reducing overweight, obesity and hypertension in children. We searched 14 databases and analyzed studies published between April 2009 and September 2012. Only randomized controlled trials performed at the school level that included elements of physical activity but did not include nutritional co-interventions were analyzed. Studies were assessed by two recommended tools (EPHPP and GRADE), and the standardized mean differences with 95% confidence intervals were collected for a random-effect meta-analysis. A total of 12 papers were included in the meta-analysis, and these were divided according to three outcomes: body mass index (11 trials, n  =  4,273, −0.02, 95% CI: −0.13 to 0.17, p  =  0.8); body weight (5 trials, n  =  1,330, −0.07, 95% CI: −0.18 to 0.04, p  =  0.2); and blood pressure (6 trials, n  =  1,549), including systolic (0.11, 95% CI: −0.10 to 0.31, p  =  0.3) and diastolic pressure (−0.00, 95% CI: −0.10 to 0.10, p  =  0.9). This meta-analysis of data from 11 randomized, school-based physical activity interventions suggests that, regardless of the potential benefits of physical activity in the school environment, the interventions did not have a statistically significant effect. However, it is difficult to generalize from these results because the duration, intensity and type of physical activity used in the interventions varied greatly.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322013000901263&lng=en&tlng=enChildrenSchoolsPhysical Education and TrainingObesityRandomized Controlled TrialsReview
spellingShingle Paulo Henrique Guerra
Moacyr Roberto Cuce Nobre
Jonas Augusto Cardoso da Silveira
Jose Augusto de Aguiar Carrazedo Taddei
The effect of school-based physical activity interventions on body mass index: a meta-analysis of randomized trials
Clinics
Children
Schools
Physical Education and Training
Obesity
Randomized Controlled Trials
Review
title The effect of school-based physical activity interventions on body mass index: a meta-analysis of randomized trials
title_full The effect of school-based physical activity interventions on body mass index: a meta-analysis of randomized trials
title_fullStr The effect of school-based physical activity interventions on body mass index: a meta-analysis of randomized trials
title_full_unstemmed The effect of school-based physical activity interventions on body mass index: a meta-analysis of randomized trials
title_short The effect of school-based physical activity interventions on body mass index: a meta-analysis of randomized trials
title_sort effect of school based physical activity interventions on body mass index a meta analysis of randomized trials
topic Children
Schools
Physical Education and Training
Obesity
Randomized Controlled Trials
Review
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322013000901263&lng=en&tlng=en
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