Jeff K Vallance1, Matthew P Buman2, Clare Stevinson3, Brigid M Lynch4. 1. Athabasca University, Faculty of Health Disciplines, Athabasca, Alberta, Canada. jeffv@athabascau.ca. 2. Arizona State University, School of Nutrition and Health Promotion, Phoenix, AZ, USA. 3. Loughborough University, School for Sport, Exercise & Health Sciences, Loughborough, UK. 4. Baker IDI Heart and Diabetes Institute, Melbourne, Australia.
Abstract
OBJECTIVE: To examine associations of accelerometer-assessed sedentary time and self-reported screen time with sleep outcomes. METHODS: Cross-sectional study of 1674 adults from the 2005-2006 US National Health and Nutrition Examination Survey. Accelerometers were used to assess sedentary time. Screen time and sleep metrics were assessed via self-report. RESULTS: Accelerometer-assessed sedentary time was not associated with sleep outcomes. Compared to participants with the least screen time (<2h/ day), participants with the most screen time (>6h/day) were more likely to report trouble falling asleep (OR = 2.78, 95% CI: 1.21, 6.40) and wake during the night (OR = 2.55, 95% CI: 1.17, 5.52). CONCLUSIONS: With respect to sleep outcomes, context-specific sedentary behaviors may be more important than overall sedentary time.
OBJECTIVE: To examine associations of accelerometer-assessed sedentary time and self-reported screen time with sleep outcomes. METHODS: Cross-sectional study of 1674 adults from the 2005-2006 US National Health and Nutrition Examination Survey. Accelerometers were used to assess sedentary time. Screen time and sleep metrics were assessed via self-report. RESULTS: Accelerometer-assessed sedentary time was not associated with sleep outcomes. Compared to participants with the least screen time (<2h/ day), participants with the most screen time (>6h/day) were more likely to report trouble falling asleep (OR = 2.78, 95% CI: 1.21, 6.40) and wake during the night (OR = 2.55, 95% CI: 1.17, 5.52). CONCLUSIONS: With respect to sleep outcomes, context-specific sedentary behaviors may be more important than overall sedentary time.
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