Arquivos Brasileiros de Cardiologia (Oct 2008)

Fatores de risco cardiovascular em adolescentes com diferentes níveis de gasto energético Cardiovascular risk factors in adolescents with different levels of energy expenditure

  • Italo Quenni Araujo de Vasconcelos,
  • Antonio Stabelini Neto,
  • Luís Paulo Gomes Mascarenhas,
  • Rodrigo Bozza,
  • Anderson Zampier Ulbrich,
  • Wagner de Campos,
  • Renata Labronici Bertin

DOI
https://doi.org/10.1590/S0066-782X2008001600004
Journal volume & issue
Vol. 91, no. 4
pp. 227 – 233

Abstract

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FUNDAMENTO: A inatividade física na adolescência está relacionada com o acúmulo de gordura corporal, o que aparentemente pode aumentar a probabilidade do surgimento e desenvolvimento das alterações metabólicas. OBJETIVO: Verificar a predisposição dos fatores de risco para doenças cardiovasculares em adolescentes com diferentes níveis de gasto energético. MÉTODOS: Foram selecionados 108 rapazes e 132 moças, com idades entre 12 e 17 anos. O gasto energético diário foi obtido pelo questionário proposto por Bouchard e cols. Previamente dividiu-se amostra através dos quartis de gasto energético (kcal/kg/dia) para composição dos grupos: sedentário (GS), moderadamente ativo (GM) e ativo (GA). Para avaliar as concentrações de colesterol total (CT), HDL-C e triglicérides (TG), utilizou-se o método enzimático-colorimétrico. O LDL-C foi calculado pela fórmula de Friedewald e cols. Para análise estatística utilizou-se a análise de variância de um fator, adotando pBACKGROUND: Physical inactivity in adolescence is related to body fat accumulation, which apparently can increase the probability of onset and development of metabolic changes. OBJECTIVE: To verify the predisposition to cardiovascular risk factors in adolescents with different levels of energy expenditure. METHODS: A total of 108 young men and 132 young women aged between 12 and 16 years were selected. Daily energy expenditure was obtained using the questionnaire proposed by Bouchard et al. The sample was previously divided according to the quartiles of energy expenditure (Kcal/kg/day) into three groups: sedentary (SG), moderately active (MG), and active (AG). The enzyme-colorimetric method was used to determine the total cholesterol (TC), HDL-C, and triglycerides (TG) levels. LDL-C was calculated using the Friedewald et al's formula. The one-factor analysis of variance was used for statistical analysis, considering p<0.05. RESULTS: For the male gender, significant differences were found between the groups for the TC variable (mg/dl); AG (121.56±19.15) was different from MG (142.70±27.65) and from SG (145.63±36.54). Likewise, MG was different from SG (F=3.70 and p=0.03). For the TG variable (mg/dl), AG (65.69±18.95) was different from MG (82.25±33.73) and from SG (97.44±45.95). Also, MG was different from SG (F=3.40 and p=0.04). For the female gender, no significant differences were found in relation to daily energy expenditure. CONCLUSION: More active young men show lower TC and TG levels in comparison with their moderately active and sedentary peers.

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