USE OF REGIONAL CIRCUMFERENCE AS CUT-OFF POINT TO ESTIMATE THE FAT PERCENTAGE OF SCHOOL ADOLESCENTS IN THE CITY OF SÃO JOÃO DEL REI (MG)
Keywords:
obesity, anthropometry, body composition, adolescents, circumference, cut-off pointAbstract
Introduction: Childhood obesity has increasing prevalence and is considered one of the major public health problems in modern society. This study aimed to: a) evaluate the anthropometric profile of adolescents from public schools in São João del Rei, (MG); and b) propose cut-off point(s) through regional perimetry for the diagnosis of overweight and / or obesity in this population. Methods: Using a convenience sampling, 60 schoolchildren participated of the study (age: from 11 to 16 years) of both sexes (32 male and 28 female). Weight, height, skinfold and abdominal (ABD), waist and hip circumferences were measured. Moreover, we calculated the body mass index (BMI), total body fat percentage (% BF), Conicity Index (CI) and Body Adiposity Index (BAI). Results: The results showed a higher prevalence of adolescents within the ideal BMI range for each age group. However, about 10% and 15% of males and females presented overweight or obesity, respectively. The best measure which interrelated with% BF was ABD being the cutoff points suggested 70,92 cm for boys and 71,75 cm for girls. Conclusion: Although the most of subjects presented BMI within the ideal range, there is a large number overweight. Yet, the ABD seems to be a good predictor for the detection of overweight and obesity in adolescents from public schools in São João del-Rei, MG.
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