A Naturalistic Actigraphic Assessment of Changes in Adolescent Sleep, Light Exposure, and Activity Before and During COVID-19.
J Biol Rhythms
; 37(6): 690-699, 2022 Dec.
Article
in English
| MEDLINE | ID: covidwho-2038527
ABSTRACT
The majority of high school-aged adolescents obtain less than the recommended amount of sleep per night, in part because of imposed early school start times. Utilizing a naturalistic design, the present study evaluated changes in objective measurements of sleep, light, and physical activity before (baseline) and during the first wave of the COVID-19 pandemic (during COVID-19) in a group of US adolescents. Sixteen adolescents (aged 15.9 ± 1.2 years, 68.8% female) wore an actigraphy monitor for 7 consecutive days during an in-person week of school before the pandemic (October 2018-February 2020) and again during the pandemic when instruction was performed virtually (May 2020). Delayed weekday sleep onset times of 1.66 ± 1.33 h (p < 0.001) and increased sleep duration of 1 ± 0.87 h (p < 0.001) were observed during COVID-19 compared with baseline. Average lux was significantly higher during COVID-19 compared with baseline (p < 0.001). Weekday physical activity parameters were not altered during COVID-19 compared with baseline, except for a delay in the midpoint of the least active 5 h (p value = 0.044). This analysis provides insight into how introducing flexibility into the traditional school schedule might influence sleep in adolescents.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Actigraphy
/
COVID-19
Type of study:
Experimental Studies
Limits:
Adolescent
/
Child
/
Female
/
Humans
/
Male
Language:
English
Journal:
J Biol Rhythms
Journal subject:
Physiology
Year:
2022
Document Type:
Article
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