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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Front+Pediatr
2016 ; 4
(ä): 24
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English Wikipedia
Are Children Like Werewolves? Full Moon and Its Association with Sleep and
Activity Behaviors in an International Sample of Children
#MMPMID27047907
Chaput JP
; 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
; Sjödin AM
Front Pediatr
2016[]; 4
(ä): 24
PMID27047907
show ga
In 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-to-vigorous 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 questionable.