Impact of a year‐round school calendar on children's BMI and fitness: Final outcomes from a natural experiment.

Summary: Background: Structure may mitigate children's accelerated summer BMI gain and cardiorespiratory‐fitness (CRF) loss. Objectives: Examine BMI and CRF change during school and summer for year‐round and traditional calendar school children. Methods: Three schools (N = 2279, 1 year‐round) partic...

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Publicado en:Pediatric Obesity Vol. 16; no. 10; pp. 1 - 14
Autores principales: Weaver, Robert Glenn, Hunt, Ethan, Armstrong, Bridget, Beets, Michael W., Brazendale, Keith, Turner‐McGrievy, Gabrielle, Pate, Russell R., Maydeu‐Olivares, Alberto, Saelens, Brian, Youngstedt, Shawn D., Dugger, Roddrick, Parker, Hannah, von Klinggraeff, Lauren, Jones, Alexis, Burkhart, Sarah, Ressor‐Oyer, Layton
Formato: research tables/charts Journal Article
Publicado: Wiley-Blackwell Oct2021
Acceso en línea:Ver este registro en EBSCOhost
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        atl: Impact of a year‐round school calendar on children's BMI and fitness: Final outcomes from a natural experiment.
      aug:
        au:
          Weaver, Robert Glenn
          Hunt, Ethan
          Armstrong, Bridget
          Beets, Michael W.
          Brazendale, Keith
          Turner‐McGrievy, Gabrielle
          Pate, Russell R.
          Maydeu‐Olivares, Alberto
          Saelens, Brian
          Youngstedt, Shawn D.
          Dugger, Roddrick
          Parker, Hannah
          von Klinggraeff, Lauren
          Jones, Alexis
          Burkhart, Sarah
          Ressor‐Oyer, Layton
        affil: Department of Exercise Science, University of South Carolina, Columbia South Carolina, USA
      sug:
        subj:
          Schools
          Vacations
          Body Mass Index In Infancy and Childhood
          Cardiorespiratory Fitness In Infancy and Childhood
          Pediatric Obesity Prevention and Control
          Child Health
          Human
          Child
          Regression
          Weight Gain
          Race Factors
          Secondary Analysis
          Child: 6-12 years
      ab: Summary: Background: Structure may mitigate children's accelerated summer BMI gain and cardiorespiratory‐fitness (CRF) loss. Objectives: Examine BMI and CRF change during school and summer for year‐round and traditional calendar school children. Methods: Three schools (N = 2279, 1 year‐round) participated in this natural experiment. Children's BMI z‐score (zBMI) and CRF (PACER laps) were measured from 2017 to 2019 each May/August. Mixed effects regression estimated monthly zBMI and CRF change during school/summer. Secondary analyses examined differences by weight status and race. Spline regression models estimated zBMI and CRF growth from kindergarten‐sixth grade. Results: Compared to traditional school, children attending a year‐round school gained more zBMI (difference = 0.015; 95CI = 0.002, 0.028) during school, and less zBMI (difference = −0.029; 95CI = −0.041, −0.018), and more CRF (difference = 0.834; 95CI = 0.575, 1.093) monthly during summer. Differences by weight status and race were observed during summer and school. Growth models demonstrated that the magnitude of overall zBMI and CRF change from kindergarten‐sixth grade was similar for year‐round or traditional school children. Conclusions: Contrary to traditional school children zBMI increased during the traditional 9‐month school calendar and zBMI decreased during the traditional summer vacation for year‐round school children. Structured summer programming may mitigate accelerated summer BMI gain and CRF loss especially for overweight or obese, and/or Black children.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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