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Relationships of Sleep Duration, Midpoint, and Variability with Physical Activity in the HCHS/SOL Sueño Ancillary Study.

TitleRelationships of Sleep Duration, Midpoint, and Variability with Physical Activity in the HCHS/SOL Sueño Ancillary Study.
Publication TypePublication
Year2021
AuthorsSavin KL, Patel SR, Clark TL, Bravin JI, Roesch SC, Sotres-Alvarez D, Mossavar-Rahmani Y, Evenson KR, Daviglus M, Ramos AR, Zee PC, Gellman MD, Gallo LC
JournalBehav Sleep Med
Volume19
Issue5
Pagination577-588
Date Published2021 Sep-Oct
ISSN1540-2010
Abstract

OBJECTIVE/BACKGROUND: Short and long sleep duration, later sleep midpoint, and greater intra-individual sleep variability are associated with lower physical activity, but previous research lacks objective and concurrent assessment of sleep and physical activity. This cross-sectional study examined whether sleep duration, midpoint, and variability in duration and midpoint were related to wrist actigraphy-measured physical activity.PARTICIPANTS: Participants were 2156 Hispanics/Latinos in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) Sueño Ancillary Study.METHODS: Participants wore Actiwatch devices to measure sleep and physical activity via the wrist for ≥5 days. Physical activity was defined as minutes/day in the upper quartile of the sampling distribution's non-sleep activity, capturing light to vigorous physical activity.RESULTS: An inverse linear relationship between sleep duration and physical activity was found such that each additional sleep hour related to 29 fewer minutes of physical activity (B = -28.7, SE = 3.8), < .01). Variability in sleep midpoint was also associated with physical activity; with each 1-hr increase in variability there were 24 more minutes of physical activity (B = 24.2, SE = 5.6, < .01). In contrast, sleep midpoint and variability in duration were not associated with physical activity. Sensitivity analyses identified an association of short sleep duration and greater variability in sleep duration with greater accelerometry-derived moderate-to-vigorous physical activity measured at the HCHS/SOL baseline (M = 2.1 years before the sleep assessment).CONCLUSIONS: Findings help clarify inconsistent prior research associating short sleep duration and sleep variability with greater health risks but also contribute novel information with simultaneous objective assessments.

DOI10.1080/15402002.2020.1820335
Alternate JournalBehav Sleep Med
PubMed ID32946277
PubMed Central IDPMC7969471
Grant ListK24 HL127307 / HL / NHLBI NIH HHS / United States
N01HC65236 / HL / NHLBI NIH HHS / United States
N01HC65235 / HL / NHLBI NIH HHS / United States
N01HC65234 / HL / NHLBI NIH HHS / United States
N01HC65233 / HL / NHLBI NIH HHS / United States
T32 HL079891 / HL / NHLBI NIH HHS / United States
N01HC65237 / HL / NHLBI NIH HHS / United States
R01 HL098297 / HL / NHLBI NIH HHS / United States
MS#: 
0791
Manuscript Lead/Corresponding Author Affiliation: 
Field Center: San Diego (San Diego State University)
ECI: 
Yes
Manuscript Affiliation: 
Field Center: San Diego (San Diego State University)
Manuscript Status: 
Published