Clemente Filipe Manuel, Nikolaidis Pantelis Theodoros, Martins Fernando Manuel Lourenço, Mendes Rui Sousa
Instituto Politécnico de Viana do Castelo, Escola Superior de Desporto e Lazer, Melgaço, Portugal.
Instituto de Telecomunicações, Delegação da Covilhã, Covilhã, Portugal.
PLoS One. 2016 Mar 29;11(3):e0152516. doi: 10.1371/journal.pone.0152516. eCollection 2016.
Physical activity is associated with health. The aim of this study was (a) to access if Portuguese university students meet the public health recommendations for physical activity and (b) the effect of gender and day of the week on daily PA levels of university students. This observational cross-sectional study involved 126 (73 women) healthy Portuguese university students aged 18-23 years old. Participants wore the ActiGraph wGT3X-BT accelerometer for seven consecutive days. Number of steps, time spent sedentary and in light, moderate and vigorous physical activity were recorded. The two-way MANOVA revealed that gender (p-value = 0.001; η2 = 0.038; minimum effect) and day of the week (p-value = 0.001; η2 = 0.174; minimum effect) had significant main effects on the physical activity variables. It was shown that during weekdays, male students walked more steps (65.14%), spent less time sedentary (6.77%) and in light activities (3.11%) and spent more time in moderate (136.67%) and vigorous activity (171.29%) in comparison with weekend days (p < 0.05). The descriptive analysis revealed that female students walked more steps (51.18%) and spent more time in moderate (125.70%) and vigorous (124.16%) activities during weekdays than in weekend days (p < 0.05). Women students did not achieve the recommended 10,000 steps/day on average during weekdays and weekend days. Only male students achieved this recommendation during weekdays. In summary, this study showed a high incidence of sedentary time in university students, mainly on weekend days. New strategies must be adopted to promote physical activity in this population, focusing on the change of sedentary behaviour.
身体活动与健康相关。本研究的目的是:(a)评估葡萄牙大学生是否符合身体活动的公共卫生建议;(b)性别和星期几对大学生每日身体活动水平的影响。这项观察性横断面研究涉及126名(73名女性)年龄在18至23岁之间的健康葡萄牙大学生。参与者连续七天佩戴ActiGraph wGT3X - BT加速度计。记录步数、久坐时间以及进行轻度、中度和剧烈身体活动的时间。双向多变量方差分析显示,性别(p值 = 0.001;η² = 0.038;最小效应)和星期几(p值 = 0.001;η² = 0.174;最小效应)对身体活动变量有显著的主效应。结果表明,与周末相比,工作日期间男学生走的步数更多(65.14%),久坐时间更少(6.77%),轻度活动时间更少(3.11%),中度(136.67%)和剧烈活动时间更多(171.29%)(p < 0.05)。描述性分析显示,工作日期间女学生走的步数更多(51.18%),中度(125.70%)和剧烈(124.16%)活动时间比周末更多(p < 0.05)。女学生在工作日和周末平均都未达到每天10,000步的建议。只有男学生在工作日达到了这一建议。总之,本研究表明大学生久坐时间发生率较高,主要在周末。必须采取新策略来促进这一人群的身体活动,重点是改变久坐行为。