Dyslipidemia is Associated with Unfit and Overweight-Obese Children and Adolescents

Abstract

BackgroundBoth poor aerobic fitness and obesity, separately, are associated with abnormal lipid profiles.ObjectiveTo identify possible relationships of dyslipidemia with cardiorespiratory fitness and obesity, evaluated together, in children and adolescents.MethodsThis cross-sectional study included 1,243 children and adolescents (563 males and 680 females) between 7 and 17 years of age from 19 schools. Obesity was assessed using body mass index (BMI) measurements, and cardiorespiratory fitness was determined via a 9-minute run/walk test. To analyze the lipid profile of each subject, the following markers were used: total cholesterol, cholesterol fractions (high-density lipoprotein and low-density lipoprotein) and triglycerides. Data were analyzed using SPSS v. 20.0, via prevalence ratio (PR), using the Poisson regression.ResultsDyslipidemia is more prevalent among unfit/overweight-obese children and adolescents compared with fit/underweight-normal weight boys (PR: 1.25; p = 0.007) and girls (PR: 1.30, p = 0.001).ConclusionsThe prevalence of dyslipidemia is directly related to both obesity and lower levels of cardiorespiratory fitness.

Relação entre composição corporal e dislipidemias em crianças e adolescentes

“…Data showed that inappropriate anthropometric measurements (WHtR and BMI) or excess body fat assessed by bioimpedance were positively associated with higher TC and Non-HDLc values, and negatively so with HDLc, in both boys and girls. This confirmed previous data in which it was observed that overweight/obese children who did not engage in physical activity had higher levels of TC 21 . It is important to stress that in this study, most of the children and adolescents engaged in physical activity at the Knowledge Station itself.…”

“…Comparative studies of the association between body composition and plasma lipids between genders are scarce. Most studies only investigate the influence of gender on the distribution of the prevalence of dyslipidemia 21,28 . In our study we investigated not only the prevalence but also the association between different indicators of obesity and blood lipid values.…”

Obez çocuk ve adolesanlarda vücut kitle indeksi ve biyoelektrik impedans yöntemi ile ölçülen vücut yağ oranının lipid düzeyleri ve metabolik parametrelerle ilişkisi

“…Obez bireylerde dislipideminin sebebi yağ dokusunun lipolizinden sorumlu bir enzim olan hormon duyarlı lipazın, insülin tarafından inhibe edilmesidir [25]. Brezilya'da 1234 çocuk ve adolesanda yapılan bir çalışmada, lipid bozukluğunun fazla kilolu ve obez çocuklarda daha sık olduğu gösterilmiştir [15]. Bir çalışmada obez çocuklarda kolesterol hariç, belirgin şekilde lipid düzeylerinde bozulma olduğu bildirilmişken [16], morbid obez erişkinlerde yapılan bir başka çalışmada VKİ'nin TG ile pozitif, HDL ile negatif ilişkisi olduğu gösterilmiştir [21].…”

Engagement in physical education classes and health among young people: does sports practice matter? A cross-sectional study

“…Firstly, in combining low physical fitness with indicators of high adiposity, there is an increase in cardiovascular risk in comparison with the separate outcomes. 26,27 Secondly, cardiorespiratory fitness, muscle strength and low adiposity are independently associated with cardiometabolic risk [28][29][30] and thus, it is desirable that young people should fulfill all of these health criteria. Thus, the results showed that engagement in physical education classes was associated with higher probability of achievement of combined health criteria among participants who were not sports practitioners.…”