Effects of short-term sleep restriction on energy balance in healthy young adults

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dc.contributor.authorChen, Jinya
dc.contributor.examiningcommitteeTaylor, Carla (Human Nutritional Sciences) Giesbrecht, Gordon (Kinesiology and Recreation Management)en
dc.contributor.supervisorJones, Peter (Food Science)en
dc.date.accessioned2011-04-08T20:36:13Z
dc.date.available2011-04-08T20:36:13Z
dc.date.issued2011-04-08T20:36:13Z
dc.degree.disciplineHuman Nutritional Sciencesen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractInsufficient sleep may be associated with obesity via increased energy intake and/or decreased energy expenditure. The present study therefore aimed to investigate effects of sleep restriction on energy balance in healthy young adults. Participants (14 men, 13 women) aged 35.3 ± 1.0 y with 23.6 ± 0.2 kg/m2 BMI completed a randomized, crossover study exposed to short and habitual sleep with 4 wk washout. Controlled diets were provided during the first 4 d, followed by 2 d of ad libitum eating. Ad libitum energy intake, energy expenditure and physical activity level were determined as well as energy balance and body weight. Results showed that ad libitum energy intake (p = 0.031), as well as total fat (p = 0.018) increased after short compared with habitual sleep, but physical activity level, energy expenditure, energy balance, and body weight remained unaffected by sleep duration. In conclusion, sleep deprivation elevates energy intake, which may lead to positive energy balance over time and increase the risk of weight gain and/or obesity.en
dc.description.noteMay 2011en
dc.format.extent2449300 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1993/4497
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectSHORT SLEEPen
dc.subjectENERGY BALANCEen
dc.subjectENERGY INTAKEen
dc.subjectENERGY EXPENDITUREen
dc.subjectOBESITYen
dc.subjectWEIGHT GAINen
dc.subjectFOOD INTAKEen
dc.subjectHABITUAL SLEEPen
dc.subjectRESTING METABOLIC RATEen
dc.subjectRESPIRATORY QUOTIENTen
dc.subjectPHYSICAL ACTIVITY LEVELen
dc.subjectACTIVITY ENERGY EXPENDITUREen
dc.subjectFAT INTAKEen
dc.subjectEATING OCCASIONSen
dc.titleEffects of short-term sleep restriction on energy balance in healthy young adultsen
dc.typemaster thesisen_US
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