Background: The purpose of this study was to examine the independent and joint associations between physical activity (PA) and sports participation on academic performance variables within a representative sample of children and adolescents.
Methods: Data were analyzed from the combined 2017-2018 National Survey of Children's Health. Household addresses were randomly selected within each US state. One household parent answered health and wellness questions pertaining to one randomly selected household child (N = 37,392; 48.1% female; 6- to 17-y old). Weighted logistic regression models were employed to examine the independent and joint associations between child PA frequency and sports participation with academic performance variables, adjusting for child- and family-level covariates.
Results: Child PA frequency independently associated with 37% to 46% lower odds and child sports participation independently associated with 53% lower odds of reported difficulty concentrating, remembering, or making decisions (P < .001). For children who participated in sports, PA associated with 47% to 56% lower odds of ever repeating a grade level (P = .01).
Conclusions: Frequency of weekly PA and sports participation independently and negatively associated with difficulty concentrating, remembering, and making decisions, whereas the negative association between PA and ever repeating a grade level differed by child sports participation status.
Keywords: adolescent; behavioral science; pediatrics; survey research.