不同能量消耗水平青少年的心血管危险因素。

Cardiovascular risk factors in adolescents with different levels of energy expenditure.

作者信息

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

机构信息

Universidade Federal do Paraná, Curitiba, PR, Brasil.

出版信息

Arq Bras Cardiol. 2008 Oct;91(4):207-12, 227-33. doi: 10.1590/s0066-782x2008001600004.

DOI:10.1590/s0066-782x2008001600004

PMID:19009171

Abstract

BACKGROUND

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.

摘要

背景

青少年缺乏身体活动与体脂积累有关，这显然会增加代谢变化发生和发展的可能性。

目的

验证不同能量消耗水平的青少年患心血管危险因素的易感性。

方法

选取108名年龄在12至16岁之间的年轻男性和132名年轻女性。使用布沙尔等人提出的问卷获取每日能量消耗。样本先前根据能量消耗（千卡/千克/天）的四分位数分为三组：久坐组（SG）、中度活跃组（MG）和活跃组（AG）。采用酶比色法测定总胆固醇（TC）、高密度脂蛋白胆固醇（HDL-C）和甘油三酯（TG）水平。低密度脂蛋白胆固醇（LDL-C）使用弗里德瓦尔德等人的公式计算。采用单因素方差分析进行统计分析，以p<0.05为有统计学意义。

结果

对于男性，各组之间在TC变量（毫克/分升）上存在显著差异；AG组（121.56±19.15）与MG组（142.70±27.65）以及SG组（145.63±36.54）不同。同样，MG组与SG组不同（F=3.70，p=0.03）。对于TG变量（毫克/分升），AG组（65.69±18.95）与MG组（82.25±33.73）以及SG组（97.44±45.95）不同。此外，MG组与SG组不同（F=3.40，p=0.04）。对于女性，在每日能量消耗方面未发现显著差异。