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J Pediatr. 2017 Sep;188:35-41.e1. doi: 10.1016/j.jpeds.2017.05.079. Epub 2017 Jul 5.

Are Early Physical Activity and Sedentary Behaviors Related to Working Memory at 7 and 14 Years of Age?

Author information

1
ISGlobal, Center for Research in Environmental Epidemiology (CREAL), Barcelona, Spain; Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain; Pompeu Fabra University (UPF), Barcelona, Spain; Biomedical Research Networking Centres Epidemiology and Public Health (CIBERESP), Spain. Electronic address: monica.lopez@isglobal.org.
2
ISGlobal, Center for Research in Environmental Epidemiology (CREAL), Barcelona, Spain; Pompeu Fabra University (UPF), Barcelona, Spain; Biomedical Research Networking Centres Epidemiology and Public Health (CIBERESP), Spain.
3
Biomedical Research Networking Centres Epidemiology and Public Health (CIBERESP), Spain; Health Research Institute BIODONOSTIA, Donostia-San Sebastian, Spain; Sub-Directorate of Public Health of Gipuzkoa, Department of Health, Government of Basque Country, San Sebastian, Spain.
4
Health Research Institute BIODONOSTIA, Donostia-San Sebastian, Spain; Department of Social Psychology and Methodology of Behavioral Sciences, Basque Country University (EHU/UPV), Spain.
5
Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO/CSISP), Public Health, Valencia, Spain.
6
Department of Public Health, Miguel Hernández University, San Juan de Alicante, Spain.
7
Menorca Health Area, Menorca, Spain.
8
ISGlobal, Center for Research in Environmental Epidemiology (CREAL), Barcelona, Spain; Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain; Pompeu Fabra University (UPF), Barcelona, Spain; Biomedical Research Networking Centres Epidemiology and Public Health (CIBERESP), Spain.

Abstract

OBJECTIVE:

To evaluate the role of extracurricular physical activity and sedentary behavior at preschool and primary school age on working memory at primary school age and adolescence, respectively.

STUDY DESIGN:

This prospective study was based on a birth cohort across 4 Spanish regions. In the 3 younger subcohorts (n = 1093), parents reported lifestyle habits of child at age 4 years of age on a questionnaire, and children performed a computerized working memory task at 7 years of age. In the older subcohort (n = 307), the questionnaire was completed at 6 years of age and working memory was tested at 14 years of age. Adjusted regression models were developed to investigate the associations between lifestyle habits and working memory.

RESULTS:

Low extracurricular physical activity levels at 4 years of age were associated with a nonsignificant 0.95% (95% CI -2.81 to 0.92) reduction of correct responses in the working memory task at age 7 years of age. Low extracurricular physical activity levels at 6 years of age were associated with a 4.22% (95% CI -8.05 to -0.39) reduction of correct responses at age 14 years. Television watching was not associated with working memory. Other sedentary behaviors at 6 year of age were associated with a 5.07% (95% CI -9.68 to -0.46) reduction of correct responses in boys at 14 years of age.

CONCLUSION:

Low extracurricular physical activity levels at preschool and primary school ages were associated with poorer working memory performance at primary school age and adolescence, respectively. High sedentary behavior levels at primary school age were related negatively to working memory in adolescent boys.

KEYWORDS:

children; cognition; executive functions; lifestyle; longitudinal study

PMID:
28688631
DOI:
10.1016/j.jpeds.2017.05.079
[Indexed for MEDLINE]

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