Higher amounts of sedentary time are associated with short sleep duration and poor sleep quality in postmenopausal women

Author:

Creasy Seth A1ORCID,Crane Tracy E2,Garcia David O3,Thomson Cynthia A3,Kohler Lindsay N34,Wertheim Betsy C4,Baker Laura D5,Coday Mace6,Hale Lauren7,Womack Catherine R6,Wright Kenneth P18,Melanson Edward L1910

Affiliation:

1. Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO

2. College of Nursing, University of Arizona, Tucson, AZ

3. Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ

4. University of Arizona Cancer Center, University of Arizona, Tucson, AZ

5. Department of Gerontology and Geriatric Medicine, Wake Forest University, Winston-Salem, NC

6. Department of Preventative Medicine, University of Tennessee Health Science Center, Memphis TN

7. Program in Public Health, Department of Family, Population, and Preventive Medicine, Stony Brook University, Stony Brook, NY

8. Department of Integrative Physiology, University of Colorado Boulder, Boulder, CO

9. Division of Geriatric Medicine, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO

10. Geriatric Research, Education, and Clinical Center, VA Eastern Colorado Health Care System, Aurora, CO

Abstract

Abstract Study Objectives To evaluate the associations between sedentary time, total (total-PA), light (light-PA), moderate (MOD-PA), and vigorous (VIG-PA) physical activity with indices of sleep in postmenopausal women. Methods Baseline self-reported data from the Women’s Health Initiative Observational Study (n = 75 074) were used in this cross-sectional analysis. Total-PA, light-PA, MOD-PA, and VIG-PA were categorized by metabolic equivalents of the activity (MET-hour [hr]/week [wk]) and were estimated using validated questionnaires. Sedentary time was categorized by hr/day and was estimated via questionnaire. Logistic regression was used to examine the associations between these variables and short sleep (≤6 hr/night), long sleep (≥10 hr/night), poor sleep quality, and insomnia symptoms after adjustment for age, race, socioeconomic status, body mass index, health status, depressive symptoms, smoking status, alcohol use, hormone therapy, and comorbidities. Results Higher sedentary time (>11 hr/day) was associated with higher odds of short sleep (odds ratio [OR] = 1.80, 95% confidence interval [CI]: 1.72–1.88), poor sleep quality (OR = 1.85, 95% CI: 1.74–1.97), and insomnia symptoms (OR = 1.56, 95% CI: 1.49–1.64). Light-PA (>0 MET-hr/wk) was associated with lower odds of short sleep (OR = 0.96, 95% CI: 0.92–1.00), and higher amounts of total-PA (OR = 0.90, 95% CI: 0.84–0.97), light-PA (OR = 0.94, 95% CI: 0.89–1.00), and MOD-PA (OR = 0.91, 95% CI: 0.86–0.97) were associated with lower odds of poor sleep quality. Conclusions Our findings suggest that higher levels of light and moderate intensity physical activity are associated with better sleep quality, whereas higher amounts of sedentary time are associated with short sleep and lower quality sleep. Future studies should investigate the directionality of these associations and potential causal pathways.

Funder

National Heart, Lung, and Blood Institute

National Institutes of Health

U.S. Department of Health and Human Services

Publisher

Oxford University Press (OUP)

Subject

Physiology (medical),Clinical Neurology

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