Application and development of indirect measures of free-living energy expenditure

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dc.contributor.advisorLambert, Vickien_ZA
dc.contributor.authorKeytel, Laraen_ZA
dc.date.accessioned2016-04-22T13:38:06Z
dc.date.available2016-04-22T13:38:06Z
dc.date.issued2004en_ZA
dc.description.abstractThe aims of this thesis were to explore the accuracy in measuring free-living total daily energy expenditure (TDEE), by examining existing indirect measures of energy expenditure (EE) measurement and further, developing new techniques, for improved accuracy and application, in population-based studies. In a number of the studies, the research focus is the heart rate (HR) monitoring technique, for TDEE estimation as a result of its low cost and ease of implementation in large population-based studies. This thesis represents a progression from the application of the HR monitoring technique for estimating EE in response to training, or as a means to validate a physical activity recall instrument. However, what is highlighted are the limitations of the existing methodology for estimated TDEE in this way. Therefore, this thesis introduces a novel concept in the HR monitoring technique, incorporating group-based EE equations, and further, by including the effects of the previous minutes HR response on the estimation of EE from HR. Finally, this thesis validates these modifications, using a respiration chamber, purpose-built as a part of this dissertation. It should be noted, however, that in some instances, the thesis was constrained by opportunistic sampling, or the fact that in the case of Chapter 4, the study sample was part of a larger study designed for another purpose. Nevertheless, the outcomes of this research, in particular, the group-based HR-EE prediction equations, have important implications for large population-based epidemiological research concerning physical activity dose-response. Bibliography: p. 227-253.en_ZA
dc.identifier.apacitationKeytel, L. (2004). <i>Application and development of indirect measures of free-living energy expenditure</i>. (Thesis). University of Cape Town ,Faculty of Health Sciences ,Department of Human Biology. Retrieved from http://hdl.handle.net/11427/19142en_ZA
dc.identifier.chicagocitationKeytel, Lara. <i>"Application and development of indirect measures of free-living energy expenditure."</i> Thesis., University of Cape Town ,Faculty of Health Sciences ,Department of Human Biology, 2004. http://hdl.handle.net/11427/19142en_ZA
dc.identifier.citationKeytel, L. 2004. Application and development of indirect measures of free-living energy expenditure. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Keytel, Lara AB - The aims of this thesis were to explore the accuracy in measuring free-living total daily energy expenditure (TDEE), by examining existing indirect measures of energy expenditure (EE) measurement and further, developing new techniques, for improved accuracy and application, in population-based studies. In a number of the studies, the research focus is the heart rate (HR) monitoring technique, for TDEE estimation as a result of its low cost and ease of implementation in large population-based studies. This thesis represents a progression from the application of the HR monitoring technique for estimating EE in response to training, or as a means to validate a physical activity recall instrument. However, what is highlighted are the limitations of the existing methodology for estimated TDEE in this way. Therefore, this thesis introduces a novel concept in the HR monitoring technique, incorporating group-based EE equations, and further, by including the effects of the previous minutes HR response on the estimation of EE from HR. Finally, this thesis validates these modifications, using a respiration chamber, purpose-built as a part of this dissertation. It should be noted, however, that in some instances, the thesis was constrained by opportunistic sampling, or the fact that in the case of Chapter 4, the study sample was part of a larger study designed for another purpose. Nevertheless, the outcomes of this research, in particular, the group-based HR-EE prediction equations, have important implications for large population-based epidemiological research concerning physical activity dose-response. Bibliography: p. 227-253. DA - 2004 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2004 T1 - Application and development of indirect measures of free-living energy expenditure TI - Application and development of indirect measures of free-living energy expenditure UR - http://hdl.handle.net/11427/19142 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/19142
dc.identifier.vancouvercitationKeytel L. Application and development of indirect measures of free-living energy expenditure. [Thesis]. University of Cape Town ,Faculty of Health Sciences ,Department of Human Biology, 2004 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/19142en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Human Biologyen_ZA
dc.publisher.facultyFaculty of Health Sciencesen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherHuman Biologyen_ZA
dc.titleApplication and development of indirect measures of free-living energy expenditureen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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