Are Children Like Werewolves? Full Moon and Its Association with Sleep and Activity Behaviors in an International Sample of Children

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dc.contributor.authorChaput, J-P.
dc.contributor.authorWeippert, Madyson
dc.contributor.authorLeBlanc, Allana G.
dc.contributor.authorHjorth, Mads F.
dc.contributor.authorMichaelsen, Kim F.
dc.contributor.authorKatzmarzyk, Peter T.
dc.contributor.authorTremblay, Mark S.
dc.contributor.authorBarreira, Tiago V.
dc.contributor.authorBroyles, Stephanie T.
dc.contributor.authorFogelholm, Mikael
dc.contributor.authorHu, Gang
dc.contributor.authorKuriyan, Rebecca
dc.contributor.authorKurpad, Anura
dc.contributor.authorLambert, Estelle V.
dc.contributor.authorMaher, Carol
dc.contributor.authorMaia, Jose
dc.contributor.authorMatsudo, Victor
dc.contributor.authorOlds, Timothy
dc.contributor.authorOnywera, Vincent
dc.contributor.authorSarmiento, Olga L.
dc.contributor.authorStandage, Martyn
dc.contributor.authorTudor-Locke, Catrine
dc.contributor.authorZhao, Pei
dc.contributor.authorSjödin, Anders M.
dc.date.accessioned2016-04-13T07:32:11Z
dc.date.available2016-04-13T07:32:11Z
dc.date.issued2016
dc.descriptionResearch Articleen_US
dc.description.abstractIn order to verify if the full moon is associated with sleep and activity behaviors, we used a 12-country study providing 33,710 24-h accelerometer recordings of sleep and activity. The present observational, cross-sectional study included 5812 children ages 9–11 years from study sites that represented all inhabited continents and wide ranges of human development (Australia, Brazil, Canada, China, Colombia, Finland, India, Kenya, Portugal, South Africa, United Kingdom, and United States). Three moon phases were used in this analysis: full moon (±4 days; reference), half moon (±5–9 days), and new moon (±10–14 days) from nearest full moon. Nocturnal sleep duration, moderate-tovigorous physical activity (MVPA), light-intensity physical activity (LPA), and total sedentary time (SED) were monitored over seven consecutive days using a waist-worn accelerometer worn 24 h a day. Only sleep duration was found to significantly differ between moon phases (~5 min/night shorter during full moon compared to new moon). Differences in MVPA, LPA, and SED between moon phases were negligible and non-significant (<2 min/day difference). There was no difference in the associations between study sites. In conclusion, sleep duration was 1% shorter at full moon compared to new moon, while activity behaviors were not significantly associated with the lunar cycle in this global sample of children. Whether this seemingly minimal difference is clinically meaningful is questionableen_US
dc.identifier.citationChaput J-P, Weippert M, LeBlanc AG, Hjorth MF, Michaelsen KF, Katzmarzyk PT, Tremblay MS, Barreira TV, Broyles ST, Fogelholm M, Hu G, Kuriyan R, Kurpad A, Lambert EV, Maher C, Maia J, Matsudo V, Olds T, Onywera V, Sarmiento OL, Standage M, Tudor-Locke C, Zhao P and Sjödin AM (2016) Are Children Like Werewolves? Full Moon and Its Association with Sleep and Activity Behaviors in an International Sample of Children. Front. Pediatr. 4:24. doi: 10.3389/fped.2016.00024en_US
dc.identifier.issn2296-2360
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/14561
dc.language.isoenen_US
dc.publisherFrontiers Mediaen_US
dc.subjectMoonen_US
dc.subjectLunar cycleen_US
dc.subjectSleepen_US
dc.subjectPhysical activityen_US
dc.subjectSedentary behavioren_US
dc.subjectChildrenen_US
dc.titleAre Children Like Werewolves? Full Moon and Its Association with Sleep and Activity Behaviors in an International Sample of Childrenen_US
dc.typeArticleen_US
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