出版社:Instituto Brasileiro de Pesquisa e Ensino em Fisiologia do Exercício
摘要:Introduction: Combat sports are played by weight category. The higher the proportion of lean mass per kilogram of body mass, the greater the ability to express the strength of a fighter. Therefore, the estimate of fat percentage (%BF) is very important for determining the category in which the fighter will compete. Objective: Compare different methods of body assessment in athletes of the Brazilian Judo Selection. Materials and Methods: Six male athletes, from Brazilian Judo Selection, belonging to heavyweight division, aged between 23 and 29 years old were assessed. The %BF by Bioelectrical Impedance Analysis (BIA) has been provided directly by the device and also through the formulas proposed by Oppliger, Nielsen and Vance (1991) and Lukaski and Bolonchuck (1986). For skinfolds (SF) the equation Σ3 SF (Guedes, 1994) was used. The values of %BF and residual volume to hydrostatic weighing (HW) were predicted respectively by Siri (1961) and Goldman and Becklake (1959) equations. Results: the average of %BF, according to BIA was 26,7 ± 6,3, formula of Oppliger, Nielsen and Vance (1991) was 13.1 ± 2.3, and formula of Lukaski and Bolonchuck (1986) has indicated 26.5 ± 8.6 and the average obtained by Σ3 SF Guedes (1994), showed results of 26.3 ± 2.9, which was the average closest to that of HW 21.6 ± 5.0. Discussion: the formula proposed by Oppliger, Nielsen and Vance (1991) was the only one that statistically showed a significant difference when compared to the gold method, HW. On the other hand, the SF method was the one that showed the highest correlation with HW. Conclusion: The SF method using the protocol of Guedes (1994) was the one that showed the highest correlation with HW, suggesting the use of it to calculate %BF of athletes of judo’s heavyweight division. Key words: Judo; Bioelectrical impedance; Skinfolds; Hydrostatic weighing.