کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5718943 | 1607410 | 2017 | 8 صفحه PDF | دانلود رایگان |
ObjectiveTo 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 designThis prospective study was based on a birth cohort across 4 Spanish regions. In the 3 younger subcohorts (nâ=â1093), 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 (nâ=â307), 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.ResultsLow extracurricular physical activity levels at 4 years of age were associated with a nonsignificant 0.95% (95% CI â2.81 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 â8.05 to â0.39) 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 â9.68 to â0.46) reduction of correct responses in boys at 14 years of age.ConclusionLow 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.
Journal: The Journal of Pediatrics - Volume 188, September 2017, Pages 35-41.e1