Bioelectrical impedance analysis and anthropometry for the determination of body composition in rats: effects of high-fat and high-sucrose diets

Revista de Nutrição

Larissa Rodrigues Neto Angéloco¹  Rafael Deminice¹  Izabel De Arruda Leme¹  Renata Cristina Lataro¹  Alceu Afonso Jordão¹ 

[1] ,Universidade de São Paulo Faculdade de Medicina de Ribeirão Preto Laboratório de Nutrição e MetabolismoRibeirão Preto SP ,Brasil

关键词: Anthropometry;    Bioelectrical impedance analysis;    Diet;    Rats;    Antropometria;    Bioimpedância elétrica;    Dieta;    Ratos;   

DOI  :  10.1590/S1415-52732012000300003

来源: SciELO

【 摘 要 】

OBJECTIVE: The aim of the present study was to determine the impedance of Wistar rats treated with high-fat and high-sucrose diets and correlate their biochemical and anthropometric parameters with chemical analysis of the carcass. METHODS: Twenty-four male Wistar rats were fed a standard (AIN-93), high-fat (50% fat) or high-sucrose (59% of sucrose) diet for 4 weeks. Abdominal and thoracic circumference and body length were measured. Bioelectrical impedance analysis was used to determine resistance and reactance. Final body composition was determined by chemical analysis. RESULTS: Higher fat intake led to a high percentage of liver fat and cholesterol and low total body water in the High-Fat group, but these changes in the biochemical profile were not reflected by the anthropometric measurements or bioelectrical impedance analysis variables. Anthropometric and bioelectrical impedance analysis changes were not observed in the High-Sucrose group. However, a positive association was found between body fat and three anthropometric variables: body mass index, Lee index and abdominal circumference. CONCLUSION: Bioelectrical impedance analysis did not prove to be sensitive for detecting changes in body composition, but body mass index, Lee index and abdominal circumference can be used for estimating the body composition of rats.

【 授权许可】

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