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Sleep and Obesity among Young Adults: Examining the Effectiveness of a Text Message-Based Intervention on Improving Sleep Habits

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Title: Sleep and Obesity among Young Adults: Examining the Effectiveness of a Text Message-Based Intervention on Improving Sleep Habits
Author: Filion, A. Jordan
Department: Department of Family Relations and Applied Nutrition
Program: Applied Nutrition
Advisor: Haines, Jess
Abstract: This thesis examined the effectiveness of a text message-based intervention on improving sleep habits among a national sample of young adults. Cross-sectional and longitudinal associations between sleep measures and adiposity (i.e., body mass index (BMI) and weight status) were also examined. Longitudinal data were collected from 129 young adult smokers (mean age = 21.8 years; mean BMI of analytical sample = 25.4 kg/m2) enrolled in a smoking cessation study. Sleep measures were self-reported and assessed using items adapted from valid and reliable indices. No significant intervention effects were observed among the total sample or among adequate sleepers (≥ 6 hours/night). Among short sleepers (< 6 hours/night), participants who received text messages about sleep/physical activity reported getting significantly more sleep on work/school nights at follow-up, as compared to those who received text messages focused on smoking cessation. In our secondary objective analyses, a significant inverse association was found between sleep quantity on non-work/non-school nights and both BMI and weight status in the cross-sectional models; however, the association with BMI was no longer significant after adjustment for covariates. No significant longitudinal associations were found. This study provides preliminary evidence that a text message-based sleep intervention may be a promising approach for improving sleep habits among young adults, especially short sleepers, and should be further explored as a novel approach for obesity prevention.
URI: http://hdl.handle.net/10214/8199
Date: 2014-07
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