Estimating total body fat using a skinfold prediction equation in Brazilian children

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Data
2012-03-01
Autores
Hoffman, Daniel J.
Toro-Ramos, Tatiana
Sawaya, Ana Lydia [UNIFESP]
Roberts, Susan B.
Rondo, Patricia
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Background: the double burden of obesity and underweight is increasing in developing countries and simple methods for the assessment of fat mass in children are needed.Aim: To develop and validate a new anthropometric predication equation for assessment of fat mass in children.Subjects and methods: Body composition was assessed in 145 children aged 9.8 +/- 1.3 (SD) years from São Paulo, Brazil using dual energy X-ray absorptiometry (DEXA) and skinfold measurements. the study sample was divided into development and validation sub-sets to develop a new prediction equation for FM (PE).Results: Using multiple linear regression analyses, the best equation for predicting FM (R-2 - 0.77) included body weight, triceps skinfold, height, gender and age as independent variables. When cross-validated, the new PE was valid in this sample (R-2 = 0.80), while previously published equations were not.Conclusion: the PE was more valid for Brazilian children that existing equations, but further studies are needed to assess the validity of this PE in other populations.
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Annals of Human Biology. London: Informa Healthcare, v. 39, n. 2, p. 156-160, 2012.