Validity of anthropometric procedures to estimate body density and body fat percent in military men

Ciro Romélio Rodriguez-Añez, Maria Fátima Glaner
1999 Revista Brasileira de Cineantropometria e Desempenho Humano  
The objective of this study was to verify the validity of the Katch e McArdle's equation (1973),which uses the circumferences of the arm, forearm and abdominal to estimate the body density and the procedure of Cohen (1986) which uses the circumferences of the neck and abdominal to estimate the body fat percent (%F) in military men. Therefore data from 50 military men, with mean age of 20.26 ± 2.04 years serving in Santa Maria, RS, was collected. The circumferences were measured according with
more » ... ed according with Katch e McArdle (1973) and Cohen (1986) procedures. The body density measured (Dm) obtained under water weighting was used as criteria and its mean value was 1.0706 ± 0.0100 g/ml. The residual lung volume was estimated using the Goldman's e Becklake's equation (1959). The %F was obtained with the Siri's equation (1961) and its mean value was 12.70 ± 4.71%. The validation criterion suggested by Lohman (1992) was followed. The analysis of the results indicated that the procedure developed by Cohen (1986) has concurrent validity to estimate %F in military men or in other samples with similar characteristics with standard error of estimate of 3.45%. . RESUMO Através deste estudo objetivou-se verificar a validade: da equação de Katch e McArdle (1973) que envolve os perímetros do braço, antebraço e abdômen, para estimar a densidade corporal; e, o procedimento de Cohen (1986) que envolve os perímetros do pescoço e abdômen, para estimar o % de gordura (%G); para militares. Para tanto, coletou-se os dados de 50 militares masculinos, com idade média de 20,26 ± 2,04 anos, lotados na cidade de Santa Maria, RS. Mensurou-se os perímetros conforme procedimentos de Katch e McArdle (1973) e Cohen (1986). Utilizou-se a densidade corporal mensurada (Dm) através da pesagem hidrostática como critério de validação, cujo valor médio foi de 1,0706 ± 0,0100 g/ml. Estimou-se o volume residual pela equação de Goldman e Becklake (1959). O %G derivado da Dm estimou-se pela equação de Siri (1961), obtendo-se um valor médio de 12,70 ± 4,71. Obs [...]
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