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Int. J. Environ. Res. Public Health 2018, 15(8), 1764; https://doi.org/10.3390/ijerph15081764

Moderators of School-Based Physical Activity Interventions on Cardiorespiratory Endurance in Primary School-Aged Children: A Meta-Regression

1
Department of Health, Kinesiology, and Recreation, University of Utah, Salt Lake City, UT 84112, USA
2
School of Community Health Sciences, University of Nevada Reno, Reno, NV 89557, USA
*
Author to whom correspondence should be addressed.
Received: 10 July 2018 / Revised: 1 August 2018 / Accepted: 14 August 2018 / Published: 16 August 2018
(This article belongs to the Collection Physical Activity and Public Health)
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Abstract

The purpose of this study was to examine potential moderators of school-based physical activity interventions on cariorespiratory endurance in primary school-aged children using meta-regression. An Internet search with several databases was employed, extracting school-based pediatric physical activity intervention studies published within the past 30 years. Studies were included if there was a control or comparison group, if the study sample included primary school-aged children, if the targeted outcome of cardiorespiratory endurance was objectively assessed, if the intervention was at least partially school-based, and if the effect estimate’s variability was reported. An inverse-variance random effects meta-regression was employed using the primary predictors of component number (single component or multi-component) and intervention length using 20 extracted studies with 23 total effects. The overall pooled effect on cardiorespiratory endurance was statistically significant (Hedges’ g = 0.30, 95% C.I.: 0.19–0.40; p < 0.001). Using random effects meta-regression, neither component number (b = −0.09, 95% C.I.: −0.40–0.23; p = 0.560) or intervention length (b = 0.001, 95% C.I.: −0.002–0.004; p = 0.427) yielded a significant modifying effect on cardiorespiratory endurance. School-based physical activity interventions have a significant pooled effect on cardiorespiratory endurance in primary school-aged children. Component number and intervention length does not modify this effect, suggesting other sources for between-study heterogeneity. View Full-Text
Keywords: aerobic fitness; exercise; health; meta-analysis; youth aerobic fitness; exercise; health; meta-analysis; youth
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Burns, R.D.; Brusseau, T.A.; Fu, Y. Moderators of School-Based Physical Activity Interventions on Cardiorespiratory Endurance in Primary School-Aged Children: A Meta-Regression. Int. J. Environ. Res. Public Health 2018, 15, 1764.

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