School of Educational Sciences and Psychology, University of Eastern Finland, Joensuu, Finland.
Physical Activity for Health Research Cluster, Department of Physical Education and Sport Sciences, University of Limerick, Limerick, Ireland.
BMC Public Health. 2021 Dec 1;21(1):2197. doi: 10.1186/s12889-021-12263-w.
Physical activity (PA) is recognised as one of the leading and effective strategies to prevent non-communicable diseases that boosts the immune system to fight against diseases. Closures of schools, sport clubs and facilities because of COVID-19 reduced the opportunities to participate in PA. We aimed to examine physical activity levels of late adolescents, the contexts to be physical active and its changes during the spring 2020 lockdown.
A national representative sample of late adolescents in general upper secondary school (n = 2408, females = 64%, mean age = 17.2y, SD = 0.63) completed self-report online surveys on PA behaviours between March and June 2020. Multinominal logistic regression analyses were performed to identify correlates with PA, and decision tree analyses to ascertain the perceived changes on PA during lockdown based on sport club aspirations and levels of PA.
Among the late adolescents, the distribution of PA frequency was 23% (0-2 days/week), 35% (3-4 days/week), 30% (5-6 days/week) and 12% (7 days/week), and differences between males and females were not statistically significant. Participation in both indoor and outdoor PA were 50 times more likely to report daily PA (OR = 54.28, CI = 15.16-194.37) than non-participation. A quarter of late adolescents were not part of a sports club, yet their PA levels increased. Although sports club members generally perceived they did less PA during lockdown, over a third of sport club members with competitive aspirations reported daily PA.
Overall, most late adolescents reported their PA levels decreased during lockdown. Findings from this study continue to demonstrate factors associated with PA in the context of the COVID-19 lockdown.
身体活动（PA）被认为是预防非传染性疾病的主要和有效策略之一，可增强免疫系统以抵抗疾病。由于 COVID-19，学校、体育俱乐部和设施关闭，减少了参与身体活动的机会。我们旨在检查青少年后期的身体活动水平、积极参与身体活动的背景以及 2020 年春季封锁期间的变化。
一项针对普通高中高年级青少年（n=2408 名，女性占 64%，平均年龄 17.2 岁，标准差 0.63）的全国代表性样本在 2020 年 3 月至 6 月期间在线完成了关于身体活动行为的自我报告调查。使用多项逻辑回归分析来确定与身体活动相关的因素，并使用决策树分析根据体育俱乐部愿望和身体活动水平来确定封锁期间对身体活动的感知变化。
在青少年后期，身体活动频率的分布为 23%（0-2 天/周）、35%（3-4 天/周）、30%（5-6 天/周）和 12%（7 天/周），男女之间的差异无统计学意义。与非参与者相比，参与室内和室外身体活动的可能性是报告日常身体活动的可能性的 50 倍（OR=54.28，CI=15.16-194.37）。四分之一的青少年没有参加体育俱乐部，但他们的身体活动水平有所提高。尽管体育俱乐部成员通常认为他们在封锁期间的身体活动减少了，但超过三分之一有竞技愿望的体育俱乐部成员报告了日常身体活动。
总体而言，大多数青少年在封锁期间报告他们的身体活动水平下降。本研究的结果继续证明了 COVID-19 封锁背景下与身体活动相关的因素。
