The Impact of Sleep Quality on Energy Intake, Eating Behavior, and Physical Activity
Obesity is associated with numerous health risks and is prevalent across all stages of the lifespan, although it tends to increase with age. As such, the college years are an important time for the development of obesity. Sleep behavior is a possible factor that may contribute to obesity; however, most studies that have examined this relationship have focused on sleep duration and not on sleep quality. Because the restorative nature of sleep depends on its quality in addition to quantity, it is important to measure sleep quality. The purpose of this study was to examine the impact of sleep quality on energy intake, eating behavior, and physical activity in a college sample. Participants completed self-report questionnaires measuring their sleep quality, dietary intake, eating behaviors, and physical activity. It was hypothesized that poor-quality sleepers would consume less protein and more carbohydrates, fat, and total calories compared to good-quality sleepers. It was also predicted that poor-quality sleepers would demonstrate increased hunger, disinhibition, and dietary restraint compared to good-quality sleepers. Finally, it was hypothesized that poor-quality sleepers would demonstrate lower frequencies of moderate, hard, and very hard physical activity compared to good-quality sleepers. These findings will contribute to the existing literature on sleep and obesity and will be important in the development of health promotion programs for college students.
Table of Contents
Introduction -- Review of literature -- Methodology -- Results -- Appendix A. Pittsburgh Sleep Quality index -- Appendix B. Dietary recall -- Appendix C. Three-factor eating questionnaire -- Appendix D. Night eating questionnaire -- Appendix E. Seven-day physical activity recall -- Appendix F. State trait anxiety inventory -- Appendix G. Beck Depression Inventory -- Appendix H. Perceived stress scale