Morales Illanes Gladys Ruth, Balboa-Castillo Teresa, Muñoz Sergio, Belmar Carlos, Soto Álvaro, Schifferli Ingrid, Guillen-Grima Francisco
Universidad de La Frontera, Temuco-Chile..
Nutr Hosp. 2017 Nov 16;34(5):1345-1352. doi: 10.20960/nh.1060.
There is a huge evidence in adults, that a high level of physical activity and a low level of sedentariness are associated independently with a reduction of cardiometabolic risk factors (CMRF). This association has been poor evaluated in young people and the results are not conclusive.
To estimate the association between CMRF, physical activity and sedentariness in Chilean university students.
Cross-sectional study. Sample of 326 students who enrolled at University of La Frontera, Temuco, Chile, in 2014. They were selected randomly and stratified according to faculty, career and gender. We measured anthropometry, blood pressure, lipidic profile, glycemia, insulin resistance, tobacco and alcohol consumption. These variables were associated with physical activity level (PAL) and sedentariness using the IPAQ questionnaire.
The students with a low PAL had a higher probability of abdominal obesity (OR: 4.68; IC 95% 1.86-11.73), metabolic syndrome (OR: 3.80; IC 95% 1.23-11.73) and triglycerides elevated (OR: 2.61 IC 95%; 1.18-5.75), compared with students with moderate and vigorous PAL (p < 0.05). There were no association between CMRF and sedentariness, even after fit by physical activity.
We found an association between CMRF and PAL which was independent of sedentatiness. We believe it is very important to implement effective physical activity programs at universities. It is necesary to encourage students in order to increase the physical activity level to a moderate and vigorous range with the purpose of decreasing their cardiovascular risk. We consider it is recommendable to keep studying the association between sedentariness and CMRF.
在成年人中有大量证据表明，高水平的身体活动和低水平的久坐行为分别与心血管代谢危险因素（CMRF）的降低相关。这种关联在年轻人中评估较少，结果也尚无定论。
评估智利大学生中CMRF、身体活动和久坐行为之间的关联。
横断面研究。样本为2014年在智利特木科的弗龙特拉大学入学的326名学生。他们根据学院、专业和性别进行随机选择和分层。我们测量了人体测量学指标、血压、血脂谱、血糖、胰岛素抵抗、烟草和酒精消费情况。这些变量通过国际体力活动问卷（IPAQ）与身体活动水平（PAL）和久坐行为相关联。
与PAL为中度和剧烈的学生相比，PAL较低的学生腹部肥胖（OR：4.68；95%置信区间1.86 - 11.73）、代谢综合征（OR：3.80；95%置信区间1.23 - 11.73）和甘油三酯升高（OR：2.61；95%置信区间1.18 - 5.75）的可能性更高（p < 0.05）。即使在根据身体活动进行调整后，CMRF与久坐行为之间也没有关联。
我们发现CMRF与PAL之间存在关联，且该关联独立于久坐行为。我们认为在大学实施有效的身体活动计划非常重要。有必要鼓励学生将身体活动水平提高到中度和剧烈范围，以降低他们的心血管风险。我们认为继续研究久坐行为与CMRF之间的关联是可取的。
