Faculté des Sciences de l'Activité Physique, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada.
Kino-Québec Research Chair on the Adoption of a Physically Active Lifestyle in School Contexts, Sherbrooke, QC J1K 2R1, Canada.
Int J Environ Res Public Health. 2021 Sep 2;18(17):9256. doi: 10.3390/ijerph18179256.
This study aimed to examine the impact of the COVID-19 pandemic on the 24 h movement behaviors of adolescents. This was conducted to capture their evolution from February to December 2020, as well as to explore the use of technology for physical activity purposes by adolescents as a strategy to increase their physical activity during the pandemic. Physical activity, recreational screen time, sleep duration, and sleep quality were self-reported by 2661 adolescents using an online questionnaire. Participants also indicated, in comparison with the previous winter (regular in-class learning), how their different movement behaviors changed during the following 2020 periods: (1) spring (school closures), (2) summer (school break), and (3) autumn (hybrid learning). Finally, information about the use of technology during physical activity was collected. Results show that the 24 h movement behaviors of the participants varied across the different periods, and these variations were consistent with the restrictive measures imposed by the government. It was also observed that the negative effects of the COVID-19 pandemic on sleep duration and quality peaked in autumn. Finally, participants' physical activity levels were associated with the use of physical activity-related tools and applications. In conclusion, the restrictive measures due to the COVID-19 pandemic worsened the situation of the 24 h movement behaviors in adolescents, which has become critical.
这项研究旨在探讨 COVID-19 大流行对青少年 24 小时活动行为的影响。这样做是为了捕捉他们在 2020 年 2 月至 12 月期间的演变情况，并探讨青少年为增加大流行期间的身体活动而将技术用于身体活动的策略。2661 名青少年使用在线问卷自我报告了身体活动、娱乐性屏幕时间、睡眠时间和睡眠质量。参与者还比较了与前一个冬季（常规课堂学习）相比，他们在以下 2020 个时期的不同活动行为发生了哪些变化：（1）春季（学校关闭），（2）夏季（学校休假）和（3）秋季（混合学习）。最后，还收集了有关在身体活动期间使用技术的信息。研究结果表明，参与者的 24 小时活动行为在不同时期有所不同，这些变化与政府实施的限制措施一致。还观察到，COVID-19 大流行对睡眠时间和质量的负面影响在秋季达到顶峰。最后，参与者的身体活动水平与使用与身体活动相关的工具和应用程序有关。总之，由于 COVID-19 大流行而实施的限制措施使青少年的 24 小时活动行为恶化，情况变得至关重要。
