Moderate-to-Vigorous Physical Activity, Indices of Cognitive Control, and Academic Achievement in Preadolescents - 25/05/16
, Eric S. Drollette, BS 3, Mark R. Scudder, BS 3, Naiman A. Khan, PhD, RD 3, Lauren B. Raine, BS 3, Lauren B. Sherar, PhD 2, 4, Dale W. Esliger, PhD 2, 4, Arthur F. Kramer, PhD 5, Charles H. Hillman, PhD 3Abstract |
Objective |
To assess whether preadolescents' objectively measured moderate-to-vigorous physical activity (MVPA) is associated with cognitive control and academic achievement, independent of aerobic fitness.
Study design |
A sample of 74 children (Meanage = 8.64 years, SD = .58, 46% girls) were included in the analyses. Daily MVPA (min/d) was measured over 7 days using ActiGraph wGT3X+ accelerometer. Aerobic fitness was measured using a maximal graded exercise test and expressed as maximal oxygen uptake (mL*kg−1*min−1). Inhibitory control was measured with a modified Eriksen flanker task (reaction time and accuracy), and working memory with an Operation Span Task (accuracy scores). Academic achievement (in reading, mathematics, and spelling) was expressed as standardized scores on the Kaufman Test of Educational Achievement. The relationships were assessed using hierarchical regression models adjusting for aerobic fitness and other covariates.
Results |
No significant associations were found between MVPA and inhibition, working memory, or academic achievement. Aerobic fitness was positively associated with inhibitory control (P = .02) and spelling (P = .04) but not with other cognitive or academic variables (all P > .05).
Conclusions |
Aerobic fitness, rather than daily MVPA, is positively associated with childhood ability to manage perceptual interference and spelling. Further research into the associations between objectively measured MVPA and cognitive and academic outcomes in children while controlling for important covariates is needed.
Le texte complet de cet article est disponible en PDF.Keywords : Accelerometry, aerobic fitness, inhibitory control, working memory, standardized academic tests, children
Abbreviations : ADHD, BMI, CPM, HR, MVPA, OSPAN, PCL, PCU, RCT, RT, SES, VO2max
Plan
| Funded by the Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD069381 [to C.H., A.K., B.H., and J.B.]). L.S. and D.E. were funded by the National Institute for Health Research Diet, Lifestyle & Physical Activity Biomedical Research Unit, University Hospitals of Leicester; and the National Institute for Health Research Collaboration for Leadership in Applied Health Research and Care – East Midlands. L.R. was funded by the National Institute for Agriculture under the Illinois Transdisciplinary Obesity Prevention Program (2011-67001-30101) and the Hatch Project (ILLU-971-358). This manuscript formed a part of a PhD research by Dominika Pindus funded by the School of Sport, Exercise and Health Sciences, Loughborough University. The authors declare no conflicts of interest. |
Vol 173
P. 136-142 - juin 2016 Retour au numéro
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