Longitudinal associations between facets of sleep and adiposity in youth

Autor: Esther A Kwarteng, Susan Z. Yanovski, Loie M Faulkner, Megan N. Parker, Jack A. Yanovski, Lisa M. Shank, Sarah LeMay-Russell, Meghan E. Byrne, Natasha A. Schvey, Taylor N. Swanson, Marian Tanofsky-Kraff, Eliana Ramirez, Kweku G Djan, Anna Zenno, Nichole R. Kelly, Shanna B. Yang, Sheila M. Brady
Rok vydání: 2021
Předmět:
Zdroj: Obesity (Silver Spring)
ISSN: 1930-739X
Popis: Objective Beyond sleep duration, other facets of sleep such as variability and timing may be associated with obesity risk in youth. However, data are limited. Using a longitudinal design, this study tested whether multiple facets of sleep were associated with fat mass gain over 1 year. Methods A convenience sample of non-treatment-seeking youth (age 8-17 years) wore actigraphy monitors for 14 days. Average weekly sleep duration, within-person sleep duration variability, weekend catch-up sleep, bedtime and wake time shift, social jet lag, bedtime, wake time, and sleep midpoint were calculated. The association of each facet of baseline sleep with 1-year fat mass, adjusting for baseline fat mass and height, was examined. Results A total of 137 youths (54.0% female; mean [SD], age 12.5 [2.6] years; 28.4% non-Hispanic Black or African American; baseline fat mass = 15.3 [8.9] kg; 1-year fat mass = 17.0 [10.0] kg; 28.5% with baseline overweight or obesity) were studied. Wake time (p = 0.03) and sleep midpoint (p = 0.02) were inversely associated with 1-year fat mass, such that earlier wake time and midpoint were associated with higher 1-year fat mass. No other facet of sleep was significantly associated with 1-year fat mass (p > 0.09). Conclusions Using objective measures, youth with earlier wake times and sleep midpoints had greater gains in fat mass. Additional research is needed to determine whether sleep timing may be a modifiable target to prevent pediatric obesity.
Databáze: OpenAIRE
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