Predição da síndrome metabólica em crianças por meio das medidas antropométricas e nível de atividade física

• Autor(a) principal: Andaki, Alynne Christian Ribeiro
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/2720
• topic: Antropometria; Crianças; Curva ROC; Anthropometry; Children; Curve ROC; CNPQ::CIENCIAS DA SAUDE::NUTRICAO

Studies in public health area accomplished in Brazil and around the world indicate that the prevalence of overweight and obesity has been increasing, mainly in children. The excess of body fat in the childhood is associated to increased risk of obesity in the adulthood, as well as to the development of co-morbidities, as lipids disorders, type 2 diabetes and hypertension, which are components of the metabolic syndrome (MS). This study evaluated the effectiveness of anthropometric measures and physical activity level in predicting MS in 10 years-old children. The study included 187 children born in 1999, of both sexes, from the public and private schools in Viçosa (MG). The anthropometric indicators evaluated were weight, stature, body mass index (BMI), waist circumference as measured at two benchmark sites, conicity index, triciptal, biciptal, subscapular and suprailiac skinfolds, sum of these four skinfolds, sum of subscapular and triciptal skinfolds and percentage of body fat. The children had their blood pressure performed following standardized method. Triglycerides, HDL-c and glycemia were assessed in 141 children. The physical activity level was calculated for 116 children, and the number of steps/day was obtained by use of the pedometer for seven consecutive days, for 136 children. Children's lifestyle and socioeconomic characteristics was obtained by a questionnaire answered by their responsible. The conicity index, the sum of four skinfolds, physical activity level, and number of steps were accurate in predicting the MS in boys. The accurate anthropometrics indicators in girls were BMI, waist circumference at umbilical level, and at the level of maximum waist narrowing, sum of the triciptal and subscapular skinfolds, the four skinfolds evaluated separately, and their sum (the largest area under the curve = 0,908), and the percentage of body fat. The study also found that different points of measurement of waist circumference showed accuracy in identifying different metabolic alterations, as high blood pressure, low levels of HDL-c and hypertriglyceridemia. It was concluded that the physical activity level and the number of steps were accurate indicators to predict MS in boys. The sum of four skinfolds showed to be the most accurate anthropometric indicator for to predict MS in boys and girls, and the cutoff points suggested were 68,8 mm and 72 mm for boys and girls, respectively. Thus, monitoring of anthropometric measures and physical activity are essential in the control and prevention of metabolic syndrome in children.