OBJECTIVE: Basal metabolic rate (BMR) is the main part of the total body energy expenditure. The value of BMR is individual and depends on a lot of factors. The goal of the research was to discover the influence of anthropometric parameters, age and gender, on changes of the BMR values. METHODS: A total of 177 individuals of Czech Caucasian origin from South Moravia (BMI 27.3 ± 7.88 kg/m2) aged 18-55 (117 women, 60 men) were included in the study. Selected anthropometric characteristics were measured using a stadiometer (SECA 213) and bioelectrical impedance analysis (Inbody 230). BMR was measured by indirect calorimetry (Cortex Metalyzer 3B). The measured values were statistically evaluated by the regression analysis and least square method (LSM). RESULTS: From the following results that the factors that influence the BMR value statistically significantly (p < 0.05) are: age, gender, body mass index, total body water, and percent of body fat. CONCLUSION: Body fat and age have both an indirect impact on the basal metabolic rate of the Czech population in working age. However, BMI and the total body water were discovered to have a direct influence on the BMR.

Department of Public Health Faculty of Medicine Masaryk University Brno Czech Republic

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