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Screen time impairs the relationship between physical fitness and academic attainment in children

dc.contributor.authorAguilar M.M.
dc.contributor.authorVergara F.A.
dc.contributor.authorVelásquez E.J.A.
dc.contributor.authorMarina R.
dc.contributor.authorGarcía-Hermoso A.
dc.date.accessioned2020-09-02T22:11:01Z
dc.date.available2020-09-02T22:11:01Z
dc.date.issued2015
dc.identifier10.1016/j.jped.2014.10.004
dc.identifier.citation91, 4, 339-345
dc.identifier.issn00217557
dc.identifier.urihttps://hdl.handle.net/20.500.12728/3486
dc.descriptionObjective The purpose of this study was twofold: to analyze the association between physical fitness and academic attainment, and to determine the influence of screen time on the association between physical fitness and academic attainment. Methods A cross-sectional study including 395 schoolchildren from seven schools of the Maule Region, Chile (mean age 12.1 years; 50.4% boys) participated in the autumn of 2014 (March to June). Self-reported physical activity and screen time were evaluated. The study measured academic achievement (mean of the grades obtained in several core subjects), physical fitness (cardiorespiratory fitness and muscular strength), weight, height, parental education, and socioeconomic status. Linear regression analysis was used to analyze the relationships between physical fitness and academic attainment after adjusting for potential confounders by gender. Analysis of variance was used to analyze the differences in academic attainment according to fitness and screen time categories (< 2 hours/day and ≥ 2 hours/day). Results In both genders good cardiorespiratory fitness levels were associated with high language (β = 0.272-0.153) and mean academic attainment (β = 0.192-0.156) grades; however, after adjusting for screen time and other potential confounders, these associations disappear. Similarly, no relationship was observed after analyzing those children who spend more hours of screen time (≥ 2 hours/day). Conclusions Academic attainment is associated with higher cardiorespiratory fitness levels; however, it was weakly impaired by screen time. These findings seem to suggest that parents and policymakers should minimize the negative effects of screen time on children's lives to maximize the beneficial effect of healthy habits on academic attainment. © 2015 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.
dc.language.isoen
dc.publisherElsevier Editora Ltda
dc.subjectAcademic performance
dc.subjectCardiorespiratory fitness
dc.subjectMuscular strength
dc.subjectSedentary lifestyle
dc.subjectacademic achievement
dc.subjectactivity of daily living assessment
dc.subjectArticle
dc.subjectbody height
dc.subjectbody weight
dc.subjectcardiorespiratory fitness
dc.subjectchild
dc.subjectcomparative study
dc.subjectcontrolled study
dc.subjectcross-sectional study
dc.subjecteducational status
dc.subjectfemale
dc.subjecthuman
dc.subjectlanguage
dc.subjectmajor clinical study
dc.subjectmale
dc.subjectmental capacity
dc.subjectmuscle strength
dc.subjectpediatrics
dc.subjectphysical activity
dc.subjectschool child
dc.subjectscoring system
dc.subjectself report
dc.subjectsex difference
dc.subjectsocial status
dc.subjectachievement
dc.subjectadverse effects
dc.subjectbody mass
dc.subjectChile
dc.subjecteducation
dc.subjectfitness
dc.subjectmicrocomputer
dc.subjectmotor activity
dc.subjectmuscle strength
dc.subjectphysiology
dc.subjectquestionnaire
dc.subjectsedentary lifestyle
dc.subjectstatistical model
dc.subjecttelevision
dc.subjecttime
dc.subjectutilization
dc.subjectvideo game
dc.subjectAchievement
dc.subjectBody Mass Index
dc.subjectChild
dc.subjectChile
dc.subjectCross-Sectional Studies
dc.subjectEducational Measurement
dc.subjectFemale
dc.subjectHumans
dc.subjectLinear Models
dc.subjectMale
dc.subjectMicrocomputers
dc.subjectMotor Activity
dc.subjectMuscle Strength
dc.subjectPhysical Fitness
dc.subjectSedentary Lifestyle
dc.subjectSex Factors
dc.subjectSurveys and Questionnaires
dc.subjectTelevision
dc.subjectTime Factors
dc.subjectVideo Games
dc.titleScreen time impairs the relationship between physical fitness and academic attainment in children
dc.typeArticle


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