Temporal Associations between Daytime Physical Activity and Sleep in Children
Open Access
- 23 August 2011
- journal article
- research article
- Published by Public Library of Science (PLoS) in PLOS ONE
- Vol. 6 (8), e22958
- https://doi.org/10.1371/journal.pone.0022958
Abstract
We examined temporal associations between objectively-measured physical activity (PA) during the day and in the evening, and sleep quantity and quality. PA and sleep were measured by actigraphs for an average of one week in an epidemiological cohort study of 275 eight-year-old children. For each one standard deviation (SD) unit of increased PA during the day, sleep duration was decreased by 0.30, sleep efficiency by 0.16, and sleep fragmentation increased by 0.08 SD units that night. For each one SD unit increase in sleep duration and efficiency the preceding night, PA the following day decreased by 0.09 and 0.16 SD units, respectively. When we contrasted days with a high amount of moderate to vigorous activity during the day or in the evening to days with a more sedentary profile, the results were essentially similar. However, moderate to vigorous PA in the evening shortened sleep latency. The relationship between a higher level of PA and poorer sleep is bidirectional. These within-person findings challenge epidemiological findings showing that more active people report better sleep. Since only a few studies using objective measurements of both PA and sleep have been conducted in children, further studies are needed to confirm/refute these results.Keywords
This publication has 44 references indexed in Scilit:
- Sleep Duration, Sleep Regularity, Body Weight, and Metabolic Homeostasis in School-aged ChildrenPEDIATRICS, 2011
- Quantity and Quality of Sleep and Incidence of Type 2 DiabetesDiabetes Care, 2009
- Self-Reported and Measured Sleep DurationEpidemiology, 2008
- Continuity of father-rated temperament from infancy to middle childhoodInfant Behavior and Development, 2008
- High Heritability for a Composite Index of Children’s Activity Level MeasuresBehavior Genetics, 2008
- Continuity of temperament from infancy to middle childhoodInfant Behavior and Development, 2006
- Predicting Activity Energy Expenditure Using the Actical® Activity MonitorResearch Quarterly for Exercise and Sport, 2006
- Evidence Based Physical Activity for School-age YouthThe Journal of Pediatrics, 2005
- Daily physical activity assessment: what is the importance of upper limb movements vs whole body movements?International Journal of Obesity, 2004
- Physical activity assessment with accelerometersInternational Journal of Obesity, 1999