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Relationship between total sleep duration and body composition

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Relationship between total sleep duration and body composition

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Title: Relationship between total sleep duration and body composition
Author: Church, Heather
Abstract: In the endless pursuit of possible causes for obesity and overweight, it has been hypothesized that sleep may have an effect on body composition. Some studies have shown that sleep deprivation is associated with a lower energy expenditure; however, other studies have shown that there is no correlation between body composition and sleep. The purpose of this study was to examine the relationship between body composition, specifically percent body fat (%BF), determined by hydrostatic weighing versus sleep quality, specifically sleep duration and efficiency. Seven kinesiology students from the University of Texas at Arlington participated in this study, in which body fat percentages were assessed using hydrostatic weighing methods. Additionally, waist-to-hip ratio and BMI were calculated from measurements of waist and hip circumferences, as well as height and weight. These results were compared to sleep data obtained from Fitbit trackers worn for three nights. A sleep assessment questionnaire was completed to provide additional information regarding sleep patterns. An examination of the means indicated that there is very little association between body composition and quality of sleep, but a moderate association between sleep duration and the values of body fat percentage and waist to hip ratio.
URI: http://hdl.handle.net/10106/9861
Date: 2012-06-11

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