Changes in children's sleep and physical activity during a 1-week versus a 3-week break from school: a natural experiment

R. Glenn Weaver, Michael W. Beets, Michelle Perry, Ethan Hunt, Keith Brazendale, Lindsay Decker, Gabrielle Turner-McGrievy, Russell Pate, Shawn Youngstedt, Brian E. Saelens, Alberto Maydeu-Olivares

Research output: Contribution to journalArticle

Abstract

Study Objectives: To examine changes in elementary aged children's sleep and physical activity during a 1-week and a 3-week school break. Methods: Sleep and physical activity of elementary children (n = 154, age = 5-9 years, 44.8% female, 65.5% African American) were collected over 7 weeks that included a 1-week break in two schools and a 3-week break in a single school. Mixed regression models estimated sleep and physical activity changes within and between groups (i.e. 1-week vs. 3-weeks) during school and school break weeks. Results: Compared to school weeks, bed times shifted 72.7 (95% CI = 57.5, 87.9) and 75.4 (95% CI = 58.1, 92.7) minutes later on weekdays during the 1-week and 3-week break, respectively. Wake times shifted 111.6 (95% CI = 94.3, 128.9) and 99.8 (95% CI = 80.5, 119.1) minutes later on weekdays during 1-week and 3-week breaks. On weekdays during the 3-week break, children engaged in 33.1 (95% CI = 14.1, 52.2) more sedentary minutes and -12.2 (-20.2, -4.2) fewer moderate-to-vigorous physical activity minutes/day. No statistically significant changes in children's sedentary, light, or moderate-to-vigorous physical activity (MVPA) minutes were observed on weekdays during the 1-week break. Between-group differences in the change in time sedentary (32.1-95% CI = 5.8, 58.4), and moderate-to-vigorous (-13.0-95% CI = -23.9, -2.0) physical activity were observed. Conclusions: Children's sleep shifted later on both 1-week and 3-week breaks. Children's activity changed minimally on weekdays during a 1-week school break and more during a 3-week school break. Displaced sleep and reductions in activity are intervention targets for mitigating unhealthy weight gain during extended breaks from school.

LanguageEnglish (US)
JournalSleep
Volume42
Issue number1
DOIs
StatePublished - Jan 1 2019

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Sleep
Exercise
African Americans
Weight Gain
Light

ASJC Scopus subject areas

  • Clinical Neurology
  • Physiology (medical)

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Weaver, R. G., Beets, M. W., Perry, M., Hunt, E., Brazendale, K., Decker, L., ... Maydeu-Olivares, A. (2019). Changes in children's sleep and physical activity during a 1-week versus a 3-week break from school: a natural experiment. Sleep, 42(1). https://doi.org/10.1093/sleep/zsy205

Changes in children's sleep and physical activity during a 1-week versus a 3-week break from school : a natural experiment. / Weaver, R. Glenn; Beets, Michael W.; Perry, Michelle; Hunt, Ethan; Brazendale, Keith; Decker, Lindsay; Turner-McGrievy, Gabrielle; Pate, Russell; Youngstedt, Shawn; Saelens, Brian E.; Maydeu-Olivares, Alberto.

In: Sleep, Vol. 42, No. 1, 01.01.2019.

Research output: Contribution to journalArticle

Weaver, RG, Beets, MW, Perry, M, Hunt, E, Brazendale, K, Decker, L, Turner-McGrievy, G, Pate, R, Youngstedt, S, Saelens, BE & Maydeu-Olivares, A 2019, 'Changes in children's sleep and physical activity during a 1-week versus a 3-week break from school: a natural experiment', Sleep, vol. 42, no. 1. https://doi.org/10.1093/sleep/zsy205
Weaver, R. Glenn ; Beets, Michael W. ; Perry, Michelle ; Hunt, Ethan ; Brazendale, Keith ; Decker, Lindsay ; Turner-McGrievy, Gabrielle ; Pate, Russell ; Youngstedt, Shawn ; Saelens, Brian E. ; Maydeu-Olivares, Alberto. / Changes in children's sleep and physical activity during a 1-week versus a 3-week break from school : a natural experiment. In: Sleep. 2019 ; Vol. 42, No. 1.
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abstract = "Study Objectives: To examine changes in elementary aged children's sleep and physical activity during a 1-week and a 3-week school break. Methods: Sleep and physical activity of elementary children (n = 154, age = 5-9 years, 44.8{\%} female, 65.5{\%} African American) were collected over 7 weeks that included a 1-week break in two schools and a 3-week break in a single school. Mixed regression models estimated sleep and physical activity changes within and between groups (i.e. 1-week vs. 3-weeks) during school and school break weeks. Results: Compared to school weeks, bed times shifted 72.7 (95{\%} CI = 57.5, 87.9) and 75.4 (95{\%} CI = 58.1, 92.7) minutes later on weekdays during the 1-week and 3-week break, respectively. Wake times shifted 111.6 (95{\%} CI = 94.3, 128.9) and 99.8 (95{\%} CI = 80.5, 119.1) minutes later on weekdays during 1-week and 3-week breaks. On weekdays during the 3-week break, children engaged in 33.1 (95{\%} CI = 14.1, 52.2) more sedentary minutes and -12.2 (-20.2, -4.2) fewer moderate-to-vigorous physical activity minutes/day. No statistically significant changes in children's sedentary, light, or moderate-to-vigorous physical activity (MVPA) minutes were observed on weekdays during the 1-week break. Between-group differences in the change in time sedentary (32.1-95{\%} CI = 5.8, 58.4), and moderate-to-vigorous (-13.0-95{\%} CI = -23.9, -2.0) physical activity were observed. Conclusions: Children's sleep shifted later on both 1-week and 3-week breaks. Children's activity changed minimally on weekdays during a 1-week school break and more during a 3-week school break. Displaced sleep and reductions in activity are intervention targets for mitigating unhealthy weight gain during extended breaks from school.",
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AU - Perry, Michelle

AU - Hunt, Ethan

AU - Brazendale, Keith

AU - Decker, Lindsay

AU - Turner-McGrievy, Gabrielle

AU - Pate, Russell

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N2 - Study Objectives: To examine changes in elementary aged children's sleep and physical activity during a 1-week and a 3-week school break. Methods: Sleep and physical activity of elementary children (n = 154, age = 5-9 years, 44.8% female, 65.5% African American) were collected over 7 weeks that included a 1-week break in two schools and a 3-week break in a single school. Mixed regression models estimated sleep and physical activity changes within and between groups (i.e. 1-week vs. 3-weeks) during school and school break weeks. Results: Compared to school weeks, bed times shifted 72.7 (95% CI = 57.5, 87.9) and 75.4 (95% CI = 58.1, 92.7) minutes later on weekdays during the 1-week and 3-week break, respectively. Wake times shifted 111.6 (95% CI = 94.3, 128.9) and 99.8 (95% CI = 80.5, 119.1) minutes later on weekdays during 1-week and 3-week breaks. On weekdays during the 3-week break, children engaged in 33.1 (95% CI = 14.1, 52.2) more sedentary minutes and -12.2 (-20.2, -4.2) fewer moderate-to-vigorous physical activity minutes/day. No statistically significant changes in children's sedentary, light, or moderate-to-vigorous physical activity (MVPA) minutes were observed on weekdays during the 1-week break. Between-group differences in the change in time sedentary (32.1-95% CI = 5.8, 58.4), and moderate-to-vigorous (-13.0-95% CI = -23.9, -2.0) physical activity were observed. Conclusions: Children's sleep shifted later on both 1-week and 3-week breaks. Children's activity changed minimally on weekdays during a 1-week school break and more during a 3-week school break. Displaced sleep and reductions in activity are intervention targets for mitigating unhealthy weight gain during extended breaks from school.

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