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Browsing by Author "Lambert, Vicki"

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A comparison of indices of glucose metabolism in five black populations: data from modeling the epidemiologic transition study (METS)

Author: Atiase, Yacoba ; Farni, Kathryn ; Plange-Rhule, Jacob ; Luke, Amy ; Bovet, Pascal ; Forrester, Terrence G ; Lambert, Vicki ; Levitt, Naomi S ; Kliethermes, Stephanie ; Cao, Guichan ; Durazo-Arvizu, Ramon A ; Cooper, Richard S ; Dugas, Lara R Date: 15 Sep 2015 Background: Globally, Africans and African Americans experience a disproportionate burden of type 2 diabetes, compared to other race and ethnic groups. The aim of the study was to examine the association of plasma glucose with indices of ... Read more c b
Application and development of indirect measures of free-living energy expenditure

Author: Keytel, Lara Date: 2004 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 ... Read more
Measurement of physical activity and associated health and functional outcomes in older South Africans

Author: Kolbe-Alexander, Tracy Date: 2004 The aim of the first study was to measure validity and reliability of two PA questionnaires, the Yale Physical Activity Survey for older adults (YPAS) and the short version of the International Physical Activity Questionnaire (IPAQ), in a ... Read more
Measurement of physical activity for public health purposes : validity and reliability of the International Physical Activity Questionaire(IPAQ)

Author: Bohlmann, Isabelle Marie Therese Date: 2002 Physical inactivity is a well-recognized risk factor for chronic diseases of lifestyle and has been associated with an increased incidence of morbidity and mortality. Current recommendations for the "dose" of physical activity that may be ... Read more
Metabolic and hormonal responses to altered carbohydrate availability and its effect on fatigue development

Author: Claassen, Amanda Date: 2005 The main aims of the series of studies comprising this thesis were to investigate the effect of altered endogenous carbohydrate (CHO) availability, achieved primarily by pre-exercise dietary manipulation and antecedent exercise exposure, on ... Read more
Mind the gap: brain-behaviour barriers to successful weight loss maintenance

Author: Hume, David John Date: 2015 The primary objectives of this dissertation were to investigate the behavioural and neurophysiological factors related to overweight and obesity, as well as to weight loss maintenance versus weight relapse in a purposively sampled group of ... Read more
Self-reported measures versus objective measures of physical activity and sedentary behaviour : impacts of cardiovascular fitness and physical activity

Author: Tomaz, Simone Annabella Date: 2014 Physical activity (PA) and sedentary behaviour (SB) can be quantified with both self-report and objective measures, using questionnaires and accelerometers, respectively. There is a paucity of research investigating the possible influence ... Read more
Sources of error and bias in the assessment of dietary intake : 24-hour recalls and food records

Author: Meltzer, Shelly Tracy Date: 1997 The first aim of this dissertation was to validate the 24-hour recall method of dietary assessment and to identify possible sources of error and bias in a cross-cultural sample of South African women. The second aim of this dissertation was ... Read more
Three-Dimensional Body Volume Measurement From Two-Dimensional Images: Towards A Smartphone Application

Author: Majola, Khwezi Date: 2020 Obesity poses a public health threat worldwide and is associated with a higher mortality, increased likelihood of diabetes, and an increased risk of cancer. When treating obesity, regular monitoring of metrics such as body mass index (BMI) ... Read more
Voluntary physical activity : measurement and relationship to selected health parameters in rural black South Africans resident in the Limpopo Province, South Africa.

Author: Cook, Ian Date: 2012 The use of objective measures of physical activity in addition to, or in place of, subjective or self-report measures of physical activity, is being increasingly promoted in Physical Activity Epidemiology research. This thesis investigates ... Read more