TY - JOUR
T1 - Changes in children's sleep and physical activity during a 1-week versus a 3-week break from school
T2 - A natural experiment
AU - Weaver, R. Glenn
AU - Beets, Michael W.
AU - Perry, Michelle
AU - Hunt, Ethan
AU - Brazendale, Keith
AU - Decker, Lindsay
AU - Turner-McGrievy, Gabrielle
AU - Pate, Russell
AU - Youngstedt, Shawn
AU - Saelens, Brian E.
AU - Maydeu-Olivares, Alberto
N1 - Funding Information:
Research reported in this publication was supported by the Eunice Kennedy Shriver National Institute of Child Health & Human Development of the National Institutes of Health under Award Number R21HD095164. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. Conflict of interest statement. None declared.
Publisher Copyright:
© 2018 Sleep Research Society.
PY - 2019/1/1
Y1 - 2019/1/1
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.
AB - 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.
KW - health
KW - obesity
KW - overweight
KW - weight
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U2 - 10.1093/sleep/zsy205
DO - 10.1093/sleep/zsy205
M3 - Article
C2 - 30358869
AN - SCOPUS:85060172281
SN - 0161-8105
VL - 42
JO - Sleep
JF - Sleep
IS - 1
M1 - zsy205
ER -