Anthropometric indicators of obesity in the prediction of high body fat in adolescents

• Autor(a) principal: Pelegrini,Andreia
• Data de Publicação: 2015
• Outros Autores: Silva,Diego Augusto Santos, Silva,João Marcos Ferreira de Lima, Grigollo,Leoberto, Petroski,Edio Luiz
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Paulista de Pediatria (Ed. Português. Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-05822015000100056
• topic: Anthropometry; Body fat distribution; Students

OBJECTIVE: To determine the anthropometric indicators of obesity in the prediction of high body fat in adolescents from a Brazilian State. METHODS: The study included 1,197 adolescents (15-17 years old). The following anthropometric measurements were collected: body mass (weight and height), waist circumference and skinfolds (triceps and medial calf). The anthropometric indicators analyzed were: body mass index (BMI), waist circumference (WC), waist-to-height ratio (WHtR) and conicity index (C-Index). Body fat percentage, estimated by the Slaughter et al equation, was used as the reference method. Descriptive statistics, U Mann-Whitney test, and ROC curve were used for data analysis. RESULTS: Of the four anthropometric indicators studied, BMI, WHtR and WC had the largest areas under the ROC curve in relation to relative high body fat in both genders. The cutoffs for boys and girls, respectively, associated with high body fat were BMI 22.7 and 20.1kg/m², WHtR 0.43 and 0.41, WC 75.7 and 67.7cm and C-Index 1.12 and 1.06. CONCLUSIONS: Anthropometric indicators can be used in screening for identification of body fat in adolescents, because they are simple, have low cost and are non-invasive.