Center for Health Sciences, Universidade Estadual do Norte do Paraná, Jacarezinho, Brazil.
BMC Public Health. 2011 Aug 30;11:674. doi: 10.1186/1471-2458-11-674.
In adults, there is a substantial body of evidence that physical inactivity or low cardiorespiratory fitness levels are strongly associated with the development of metabolic syndrome. Although this association has been studied extensively in adults, little is known regarding this association in adolescents. The aim of this study was to analyze the association between physical activity and cardiorespiratory fitness levels with metabolic syndrome in Brazilian adolescents.
A random sample of 223 girls (mean age, 14.4 ± 1.6 years) and 233 boys (mean age, 14.6 ± 1.6 years) was selected for the study. The level of physical activity was determined by the Bouchard three-day physical activity record. Cardiorespiratory fitness was estimated by the Leger 20-meter shuttle run test. The metabolic syndrome components assessed included waist circumference, blood pressure, HDL-cholesterol, triglycerides, and fasting plasma glucose levels. Independent Student t-tests were used to assess gender differences. The associations between physical activity and cardiorespiratory fitness with the presence of metabolic syndrome were calculated using logistic regression models adjusted for age and gender.
A high prevalence of metabolic syndrome was observed in inactive adolescents (males, 11.4%; females, 7.2%) and adolescents with low cardiorespiratory fitness levels (males, 13.9%; females, 8.6%). A significant relationship existed between metabolic syndrome and low cardiorespiratory fitness (OR, 3.0 [1.13-7.94]).
The prevalence of metabolic syndrome is high among adolescents who are inactive and those with low cardiorespiratory fitness. Prevention strategies for metabolic syndrome should concentrate on enhancing fitness levels early in life.
在成年人中，有大量证据表明身体活动不足或心肺功能水平低与代谢综合征的发生密切相关。尽管这一关联在成年人中已得到广泛研究，但在青少年中对此关联的了解甚少。本研究旨在分析巴西青少年的身体活动和心肺功能与代谢综合征之间的关系。
随机抽取 223 名女孩（平均年龄 14.4±1.6 岁）和 233 名男孩（平均年龄 14.6±1.6 岁）进行研究。身体活动水平通过 Bouchard 三日体力活动记录确定。心肺功能通过 Leger 20 米往返跑测试进行评估。评估的代谢综合征组分包括腰围、血压、HDL-胆固醇、甘油三酯和空腹血糖水平。使用独立学生 t 检验评估性别差异。使用逻辑回归模型，在调整年龄和性别后，计算身体活动和心肺功能与代谢综合征发生之间的关联。
在不活跃的青少年（男性 11.4%；女性 7.2%）和心肺功能水平低的青少年（男性 13.9%；女性 8.6%）中，代谢综合征的患病率较高。代谢综合征与低心肺功能之间存在显著关系（OR 3.0 [1.13-7.94]）。
不活跃和心肺功能低的青少年代谢综合征的患病率较高。代谢综合征的预防策略应集中在生命早期提高健康水平。
