Guerra S, Teixeira-Pinto A, Ribeiro J C, Ascensão A, Magalhães J, Andersen L B, Duarte J A, Mota J
Faculty of Sports Science and Physical Education, University of Porto, Porto, Portugal.
J Sports Med Phys Fitness. 2006 Mar;46(1):79-83.
The purpose of the present study was to analyze the relationship between physical activity (PA) and obesity in Portuguese children and adolescents.
The sample consisted of 1341 children and adolescents (8-15 years of age), 634 males (age, 10.6+/-2.3 y; body mass, 40.6+/-12.7 kg; height, 1.431+/-1.41 m) and 707 females (age, 10.9+/-2.4 y; body mass, 50+/-12.4 kg; height, 1.428+/-1.32 m). The sample was divided into quartiles of percentage of body fat (%BF) and physical activity index (PAI), within age and gender. Children in the upper %BF quartile were defined as obese (arbitrary definition). Logistic regression for each PAI quartile was used to determine the odds ratio of obese children and adolescents (> or = P75 of %BF) in comparison to their non-obese counterparts (< P75 of %BF).
Males in the lowest PAI quartile have an odds ratio of 2.1 of having obesity in relation to males in the highest PAI quartile. For females any significant result was found between PAI quartiles.
The results obtained in this study add some data to the controversy of PA and obesity relationship youth. Logistical regression shows that males who have a lower PAI have an odds ratio of 2.1 of obesity, in comparison with males that have higher PAI. Those findings were not found in girls.
本研究旨在分析葡萄牙儿童和青少年的身体活动(PA)与肥胖之间的关系。
样本包括1341名儿童和青少年(8至15岁),其中634名男性(年龄10.6±2.3岁;体重40.6±12.7千克;身高1.431±1.41米)和707名女性(年龄10.9±2.4岁;体重50±12.4千克;身高1.428±1.32米)。样本按年龄和性别分为体脂百分比(%BF)和身体活动指数(PAI)的四分位数。%BF四分位数较高的儿童被定义为肥胖(任意定义)。对每个PAI四分位数进行逻辑回归,以确定肥胖儿童和青少年(%BF≥P75)与其非肥胖同龄人(%BF<P75)相比的优势比。
PAI四分位数最低的男性与PAI四分位数最高的男性相比,肥胖的优势比为2.1。对于女性,在PAI四分位数之间未发现任何显著结果。
本研究获得的结果为青少年PA与肥胖关系的争议增添了一些数据。逻辑回归显示,PAI较低的男性肥胖的优势比为2.1,而PAI较高的男性则不然。在女孩中未发现这些结果。