Total Body Capacitance for Estimating Human Basal Metabolic Rate in an Egyptian Population
[摘要] Determiningbasal metabolic rate (BMR) is important for estimating total energy needs inthe human being yet, concerns have been raised regarding the suitability ofsex-specific equations based on age and weight for its calculation on anindividual or population basis. Ithas been shown that body cell mass (BCM) is the body compartment responsiblefor BMR. The objectives of this study were to investigate the relationshipbetween total body capacitance (TBC), which is considered as an expression forBCM, and BMR and to develop a formula for calculating BMR in comparison withwidely used equations. Fifty healthy nonsmoking male volunteers [mean age (± SD):24.93 ± 4.15 year and body mass index (BMI): 25.63 ± 3.59 kg/m2] andan equal number of healthy nonsmoking females matched for age and BMI wererecruited for the study. TBC and BMR were measured for all participants using octopolarbioelectric impedance analysis and indirect calorimetry techniques,respectively. A significant regressing equation based on the covariates: sex,weight, and TBC for estimating BMR was derived (R=0.96, SEE=48.59 kcal, and P<0.0001), which will be useful fornutritional and health status assessment for both individuals and populations.
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[效力级别] [学科分类] 分子生物学,细胞生物学和基因
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