Desenvolvimento e validação cruzada de equações preditivas de massa livre de gordura por bioimpedanciometria, para homens brasileiros de 20 a 59 anos de idade

Roberto Fernandes Costa; Kalina Bezerra Masset; Elys Costa Sousa; Breno Tinoco Cabral; Paulo Silva Dantas

doi:10.6063/motricidade.16232

Development and cross-validation of predictive equations of fat-free mass by bioelectrical impedance for Brazilian men aged 20 to 59 years old

Authors

Roberto Fernandes Costa
Kalina Bezerra Masset
Elys Costa Sousa
Breno Tinoco Cabral
Paulo Silva Dantas

DOI:

https://doi.org/10.6063/motricidade.16232

Abstract

The aim of this study was to develop and validate a fat free mass predictive equation by bioelectrical impedance for men of the Brazilian population. A total of 203 males aged 20 to 59 years were randomly divided into two groups: development (102) and cross-validation (101). The standard technique was dual energy radiological Abortometry (DXA). Paired t-test, multiple regression and plot of Bland-Altman were used to test the validity of the proposed model. The equation derived from the study was: FFM = 17.57 + 0.348 (Stature²/ Resistance) + 0.513 Body Mass - 0.283 Abdominal Perimeter + 0.079 Reactance - 0.038 age; concordance correlation coefficient - CCC = 0.937; r²= 0.89; standard error of estimate - SEE = 2.55 kg; pure error - PE = 2.51 kg. Thus, the new equation proposed provides a valid estimate of fat-free mass and is recommended for men with similar characteristics.

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Published

2018-12-30

How to Cite

Costa, R. F., Masset, K. B., Sousa, E. C., Cabral, B. T., & Dantas, P. S. (2018). Development and cross-validation of predictive equations of fat-free mass by bioelectrical impedance for Brazilian men aged 20 to 59 years old. Motricidade, 14(SI), 26–32. https://doi.org/10.6063/motricidade.16232

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Issue

Vol. 14 No. SI (2018): Congresso de Ciências do Desporto e Educação Física dos Países de Língua Portuguesa

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Original Article

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