Physical activity, cognition and academic performance: an analysis of mediating and confounding relationships in primary school children

Abstract Background Exploring the relationship between physical activity, cognition and academic performance in children is an important but developing academic field. One of the key tasks for researchers is explaining how the three factors interact. The aim of this study was to develop and test a c...

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Main Authors: Adrian McPherson, Lisa Mackay, Jule Kunkel, Scott Duncan
Format: Article
Language:English
Published: BMC 2018-07-01
Series:BMC Public Health
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12889-018-5863-1
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author Adrian McPherson
Lisa Mackay
Jule Kunkel
Scott Duncan
author_facet Adrian McPherson
Lisa Mackay
Jule Kunkel
Scott Duncan
author_sort Adrian McPherson
collection DOAJ
description Abstract Background Exploring the relationship between physical activity, cognition and academic performance in children is an important but developing academic field. One of the key tasks for researchers is explaining how the three factors interact. The aim of this study was to develop and test a conceptual model that explains the associations among physical activity, cognition, academic performance, and potential mediating factors in children. Methods Data were sourced from 601 New Zealand children aged 6–11 years. Weekday home, weekday school, and weekend physical activity was measured by multiple pedometer step readings, cognition by four measures from the CNS Vital Signs assessment, and academic performance from the New Zealand Ministry of Education electronic Assessment Tools for Teaching and Learning (e-asTTle) reading and maths scores. A Structured Equation Modelling approach was used to test two models of variable relationships. The first model analysed the physical activity-academic performance relationship, and the second model added cognition to determine the mediating effect of cognition on the physical activity-academic performance association. Multigroup analysis was used to consider confounding effects of gender, ethnicity and school socioeconomic decile status. Results The initial model identified a significant association between physical activity and academic performance (r = 0.225). This direct association weakened (r = 0.121) when cognition was included in the model, demonstrating a partial mediating effect of cognition. While cognition was strongly associated with academic performance (r = 0.750), physical activity was also associated with cognition (r = 0.138). Subgroups showed similar patterns to the full sample, but the smaller group sizes limited the strength of the conclusions. Conclusions This cross-sectional study demonstrates a direct association between physical activity and academic performance. Furthermore, and importantly, this study shows the relationship between physical activity and academic performance is supported by an independent relationship between physical activity and cognition. Larger sample sizes are needed to investigate confounding factors of gender, age, socioeconomic status, and ethnicity. Future longitudinal analyses could investigate whether increases in physical activity can improve both cognition and academic performance.
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spelling doaj.art-648bc9f788ca45b683c08ed9e494e8f52022-12-21T19:27:32ZengBMCBMC Public Health1471-24582018-07-011811910.1186/s12889-018-5863-1Physical activity, cognition and academic performance: an analysis of mediating and confounding relationships in primary school childrenAdrian McPherson0Lisa Mackay1Jule Kunkel2Scott Duncan3School of Sport and Recreation, Auckland University of TechnologySchool of Sport and Recreation, Auckland University of TechnologyInstitute for Sports and Sports Science, Karlsruhe Institute of TechnologySchool of Sport and Recreation, Auckland University of TechnologyAbstract Background Exploring the relationship between physical activity, cognition and academic performance in children is an important but developing academic field. One of the key tasks for researchers is explaining how the three factors interact. The aim of this study was to develop and test a conceptual model that explains the associations among physical activity, cognition, academic performance, and potential mediating factors in children. Methods Data were sourced from 601 New Zealand children aged 6–11 years. Weekday home, weekday school, and weekend physical activity was measured by multiple pedometer step readings, cognition by four measures from the CNS Vital Signs assessment, and academic performance from the New Zealand Ministry of Education electronic Assessment Tools for Teaching and Learning (e-asTTle) reading and maths scores. A Structured Equation Modelling approach was used to test two models of variable relationships. The first model analysed the physical activity-academic performance relationship, and the second model added cognition to determine the mediating effect of cognition on the physical activity-academic performance association. Multigroup analysis was used to consider confounding effects of gender, ethnicity and school socioeconomic decile status. Results The initial model identified a significant association between physical activity and academic performance (r = 0.225). This direct association weakened (r = 0.121) when cognition was included in the model, demonstrating a partial mediating effect of cognition. While cognition was strongly associated with academic performance (r = 0.750), physical activity was also associated with cognition (r = 0.138). Subgroups showed similar patterns to the full sample, but the smaller group sizes limited the strength of the conclusions. Conclusions This cross-sectional study demonstrates a direct association between physical activity and academic performance. Furthermore, and importantly, this study shows the relationship between physical activity and academic performance is supported by an independent relationship between physical activity and cognition. Larger sample sizes are needed to investigate confounding factors of gender, age, socioeconomic status, and ethnicity. Future longitudinal analyses could investigate whether increases in physical activity can improve both cognition and academic performance.http://link.springer.com/article/10.1186/s12889-018-5863-1Physical activityCognitionAcademic performanceSchoolChildrenMediation
spellingShingle Adrian McPherson
Lisa Mackay
Jule Kunkel
Scott Duncan
Physical activity, cognition and academic performance: an analysis of mediating and confounding relationships in primary school children
BMC Public Health
Physical activity
Cognition
Academic performance
School
Children
Mediation
title Physical activity, cognition and academic performance: an analysis of mediating and confounding relationships in primary school children
title_full Physical activity, cognition and academic performance: an analysis of mediating and confounding relationships in primary school children
title_fullStr Physical activity, cognition and academic performance: an analysis of mediating and confounding relationships in primary school children
title_full_unstemmed Physical activity, cognition and academic performance: an analysis of mediating and confounding relationships in primary school children
title_short Physical activity, cognition and academic performance: an analysis of mediating and confounding relationships in primary school children
title_sort physical activity cognition and academic performance an analysis of mediating and confounding relationships in primary school children
topic Physical activity
Cognition
Academic performance
School
Children
Mediation
url http://link.springer.com/article/10.1186/s12889-018-5863-1
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AT scottduncan physicalactivitycognitionandacademicperformanceananalysisofmediatingandconfoundingrelationshipsinprimaryschoolchildren