Ning Ke, Chen Si-Tong, Chi Xinli, Liang Kaixin
School of Physical Education and Sport, Shaanxi Normal University, Xi'an 710119, China.
Institute for Health and Sport, Victoria University, Melbourne 8001, Australia.
Healthcare (Basel). 2021 Oct 20;9(11):1404. doi: 10.3390/healthcare9111404.
Though we know physical activity (PA) decreased while sedentary behavior (SB) increased compared to that before the COVID-19 pandemic, little is known about subsequent changes in PA and SB throughout one year in the post-pandemic era. This study aimed to examine the changes in PA and SB in a sample of Chinese young adults using a four-wave repeated-measure design during the pandemic. A total of 411 participants provided self-reported data of sociodemographic characteristics (e.g., sex, age), PA, and SB. Nonparametric tests and generalized estimating equations were conducted. Results revealed significant changes in moderate to vigorous PA (MVPA), light PA (LPA), and SB. The MVPA of Wave 1, 2, and 3 was significantly less than that of Wave 4 ( < 0.001); the LPA of Wave 1 and 2 was significantly less than that of Wave 4; the SB of Wave 1 was significantly more than that of Wave 4 ( < 0.05). Being female was the only predictor of changes in MVPA (Beta = -0.311, 0.001). Being female (Beta = 0.115, = 0.003) and perceived family affluence (Beta = -0.059, 0.001) were predictors of changes in SB. As such, PA was less, while SB was more during the early stages of the pandemic. With the progress of the pandemic stages, health behaviors in young adults have been gradually improved. Sex and perceived family affluence were two important factors in predicting health behaviors. Our results can inform efficient policies or interventions in the COVID-19 era and future similar public health events.
尽管我们知道与新冠疫情大流行之前相比，身体活动（PA）减少而久坐行为（SB）增加，但对于疫情后时代一整年中PA和SB的后续变化却知之甚少。本研究旨在使用四波重复测量设计，调查中国年轻成年人样本中PA和SB的变化。共有411名参与者提供了社会人口学特征（如性别、年龄）、PA和SB的自我报告数据。进行了非参数检验和广义估计方程分析。结果显示，中度至剧烈身体活动（MVPA）、轻度身体活动（LPA）和SB有显著变化。第1、2和3波的MVPA显著低于第4波（<0.001）；第1和2波的LPA显著低于第4波；第1波的SB显著高于第4波（<0.05）。女性是MVPA变化的唯一预测因素（β = -0.311，<0.001）。女性（β = 0.115， = 0.003）和感知到的家庭富裕程度（β = -0.059，<0.001）是SB变化的预测因素。因此，在疫情早期，PA较少，而SB较多。随着疫情阶段的推进，年轻成年人的健康行为逐渐改善。性别和感知到的家庭富裕程度是预测健康行为的两个重要因素。我们的结果可为新冠疫情时代及未来类似公共卫生事件中的有效政策或干预措施提供参考。
