Abstract
Introduction: Slaughter′s equation is normally used for body composition assessment in children and adolescents. However, such equation – as well as others – needs to be cross-validated in specific groups as the one of top models, presenting particular physical characteristics. Objective: To test the validity of two anthropometric equations for body density estimation, Lewis et al. (1978) and Slaughter et al. (1988), in a group of professional teenager top models. Methods: 11 top models (17.09 ± 1.92 yrs old) were evaluated, using hydrostatic weighing (HW) as “gold standard”. The densities obtained by the equations were converted in body fat percentage (BF), using the formula proposed by Siri (1961). Skinfold thickness was obtained by Sanny® skinfold caliper, following the standardizations proposed by Costa (2001). The criteria adopted to determine the validity of the equations were those proposed by Lohman (1992): Pearson′s correlation coefficient (r) > 0.80, Standard Error of Estimate (SEE) < 3.5 % of body fat, and not significant difference in paired t-test. Results:
Conclusion: The analysis of the results demonstrates that only the equation proposed by Lewis et al. to evaluate female young athletes fulfilled all the validity criteria in the studied group. We can therefore conclude that this can be a good option to assess body composition in teenager top models with similar characteristics.
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Costa, R., Rodrigues, A. & Fisberg, M. Validity of Equations to Estimate Body Fat in Teenager Top Models. Pediatr Res 53, 870 (2003). https://doi.org/10.1203/00006450-200305000-00035
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DOI: https://doi.org/10.1203/00006450-200305000-00035