Abstract
ObjectivesThe objective of this study is to test the hypothesis that short sleep duration is associated with fewer minutes of transportation, work, and leisure physical activity (PA). DesignThis is a cross-sectional study conducted from 2008 to 2011. SettingThe study setting included four sites across the U.S. (Bronx, NY; Chicago, IL; Miami, FL; San Diego, CA). ParticipantsA total of 14,653 Hispanic/Latino adults aged 18–74 years were enrolled as participants for the study. MeasurementsRespondents reported sleep duration and transportation (including walking and cycling), work (including volunteering, paid work, and household chores), and leisure (including sports) PA domains and sociodemographic characteristics, other sleep characteristics, cardiometabolic health, health behaviors, and depressive symptoms. ResultsIn analyses weighted to reflect the Hispanic/Latino population of the four cities sampled, 61% had sleep duration 7–9 hours, 19% each had sleep duration < 7 hours and > 9 hours. Those sleeping < 7 hours spent 106 minutes/day in work-related PA, compared with those who spent fewer than 40 minutes/day in transportation-related or leisure-related PA. Sleep duration < 7 hours was associated with 26 minutes more in work-related PA (95% confidence interval [CI]: 16.7, 36.0), compared with sleep duration of 7–9 hours, adjusting for age and sex. Results were similar in employed respondents only, adjusting for occupation class and shift work frequency. Sleep duration was not associated with transportation-related or leisure-related PA. ConclusionsShort sleep duration is associated with more work-related PA, both in the overall sample and among those employed. Individuals with higher work-related PA may face multiple demands and stressors that negatively influence sleep duration.
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