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Indirect and direct relations between aerobic fitness, physical activity, and academic achievement in elementary school students
Lambourne, Kate Hansen, David M. Szabo, Amanda N. Lee, Jaehoon Herrmann, Stephen D. Donnelly, Joseph E.
Lambourne, Kate
Hansen, David M.
Szabo, Amanda N.
Lee, Jaehoon
Herrmann, Stephen D.
Donnelly, Joseph E.
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Abstract
BACKGROUND: There is evidence to suggest that increasing physical activity (PA) improves academic achievement (AA) in children and that aerobic fitness is associated with both cognitive function and AA. However, it is not known how these variables are interrelated and analyses with adequate control for socioeconomic variables are needed. It was hypothesized that PA would not directly affect AA but would have an indirect effect on AA through its effect on aerobic fitness. The purpose of this study was to test this hypothesized mediation using path analysis. METHODS: Cross-sectional data including AA, aerobic fitness, and daily PA assessed through accelerometry were collected from a large sample (N = 687) of 2nd and 3rd grade students. Demographic data were assessed via parent self-report. RESULTS: A total of 401 students wore the accelerometer for at least 10 hours on 3 days or more and were included in the final path analysis to evaluate potential relations among PA (predictor), aerobic fitness (mediator), and WIAT-III subtest standard scores (outcomes; i.e., reading, spelling, and mathematics). Findings showed a direct effect of PA on aerobic fitness (b = 0.009, p < 0.001) and an indirect effect (mediation) of PA via fitness on math achievement (b = 0.003, p < 0.01) after controlling for student’s grade, gender, body mass index, mother’s education level, and household income, as well as intraclass correlations among classes and schools. Neither PA nor aerobic fitness were correlated with WIAT-III reading or spelling scores. CONCLUSIONS: Mediation analysis indicated that PA exerted an influence on math achievement through its effects on aerobic fitness but was not associated with reading or spelling achievement scores.
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Date
2013-10
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Elsevier
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Path analysis, Mediation, Weschler Individual Achievement Test-III, Progressive Aerobic Cardiovascular Endurance Run
Citation
Lambourne, K., Hansen, D. M., Szabo, A. N., Lee, J., Herrmann, S. D., & Donnelly, J. E. (2013). Indirect and direct relations between aerobic fitness, physical activity, and academic achievement in elementary school students. Mental Health and Physical Activity, 6(3), 165–171. http://doi.org/10.1016/j.mhpa.2013.06.002