Hypertrigliceridemic Waist, Physical Activity and Cardiovascular Risk Factors in Schoolchildren

Abstract

32The present study aimed to analyze the prevalence of the Hypertriglyceridemic 33 Waist (HTW) and its rates with levels of physical activity, nutritional status and 34 lipid profile of students from public schools. A sample consisted of 448 35 schoolchildren between 10 and 18 years old, who are assessed by body mass, 36 height, BMI (waist circumference), triglycerides, total cholesterol, HDL-C, LDL-C, 37 non-HDL cholesterol, fasting blood glucose and weekly physical activity time. The 38 survey results showed a high prevalence of the HTW phenotype in schoolchildren 39 (n = 125; 27.9%). The group diagnosed with phenotype has higher body mass, 40 BMI, total cholesterol, LDL-C and non-HDL cholesterol and a lower level of HDL-41 C about the group without a diagnosis of the phenotype. However, for fasting 42 blood glucose measurements and time of physical activity, the groups are no 43 different. An association analysis using logistic regression showed the HTW 44 phenotype associated with sex, nutritional status, and total cholesterol, where 45 boys presented 2.0 (95% CI 1.3 -3.2); obese 6.2 (95% CI 2.7 -17.2) and 46 cholesterol levels above 150 mg / dL 3.5 (95% CI 2.1 -5.7) times more likely to 47 have the phenotype. In this way, the present research showed a high prevalence 48 of HTW in schoolchildren from public schools, with boys, obese and 49 schoolchildren with total cholesterol levels, the individuals most likely to have the 50 phenotype. However, it is worth emphasizing the importance of monitoring these 51 variables throughout the year in all courses, given the period of strong, biological, 52 behavioral and psychological changes, as they can quickly change the values of 53 the analyzed variables. 54 55 Key-Words: motor activity, dyslipidemias, blood glucose. 56 57 58 2000s when Lemieux et al., (2000) 1 investigated the hypothesis that variables 62 considered simple such as waist circumference (WC) and plasma triglyceride 63 levels (TG) fasting could be used as useful tools in the identification of risk factors 64 for the development of cardiovascular diseases. 65 Currently, the HTW phenotype is defined as the joint presence of elevated 66 levels of CC and TG, 2 , and those diagnosed in turn, have a higher chance of 67 having increased blood glucose and systemic arterial hypertension, being more 68 prone to the development of the metabolic syndrome and pathologies classified 69 as risk factors for cardiovascular diseases 2 . 70To prevent the HTW phenotype and the risk factors associated with the 71 phenotype in children and adolescents, regular physical activity is 72 recommended 3 , because, in addition to the preventive characters in these age 73 groups, good levels of physical activity provide greater health benefits, presenting 74 better cardiorespiratory and muscular fitness, bone health and maintenance of 75 adequate body weight 4 . 76Despite the association of HTW with body adiposity 3 and consequently 77 the increased cardiometabolic risk in children and adolescents 5 , few studies have 7...