GENUD (Growth, Exercise, Nutrition and Development) Research Group, University of Zaragoza, Zaragoza, Spain.
Faculty of Health and Sport Sciences (FCSD, Ronda Misericordia, 5, 22001-Huesca, Spain), Department of Physiatry and Nursing, University of Zaragoza, Spain.
Biomed Res Int. 2021 May 31;2021:5528866. doi: 10.1155/2021/5528866. eCollection 2021.
The main objective of this study was to device-assess the levels of physical activity and sedentary behaviour patterns of older adults during the situation prior to the COVID-19 pandemic, home confinement, and phase-0 of the deescalation. We also aimed to analyse the effectiveness of an unsupervised home-based exercise routine to counteract the potential increase in sedentary behaviour during the periods within the pandemic. A total of 18 noninstitutionalized older adults(78.4 ± 6.0 y.), members of the Spanish cohort of the EXERNET-Elder 3.0 project, participated in the study. They were recommended to perform an exercise prescription based on resistance, balance, and aerobic exercises during the pandemic. Wrist triaxial accelerometers (ActiGraph GT9X) were used to assess the percentage of sedentary time, physical activity, sedentary bouts and breaks of sedentary time. An ANOVA for repeated measures was performed to analyse the differences between the three different periods. During home quarantine, older adults spent more time in sedentary behaviours (71.6 ± 5.3%) in comparison with either the situation prior to the pandemic (65.5 ± 6.7%) or the ending of isolation (67.7 ± 7.1%) (all < 0.05). Moreover, participants performed less bouts of physical activity and with a shorter duration during home quarantine (both < 0.05). Additionally, no differences in the physical activity behaviours were found between the situation prior to the pandemic and the phase-0 of deescalation. According to our results, the home confinement could negatively affect health due to increased sedentary lifestyle and the reduction of physical activity. Therefore, our unsupervised exercise program does not seem to be a completely effective strategy at least in this period.
本研究的主要目的是在 COVID-19 大流行之前、居家隔离期间和降级阶段 0 评估老年人的身体活动水平和久坐行为模式。我们还旨在分析一种非监督的家庭运动常规在大流行期间对抗潜在久坐行为增加的效果。共有 18 名非住院老年人（78.4 ± 6.0 岁）参加了西班牙 EXERNET-老年 3.0 项目的队列研究。建议他们在大流行期间进行基于阻力、平衡和有氧运动的锻炼处方。腕部三轴加速度计（ActiGraph GT9X）用于评估久坐时间、身体活动、久坐时间的小睡和休息的百分比。采用重复测量方差分析比较三个不同时期的差异。居家隔离期间，老年人的久坐行为时间（71.6 ± 5.3%）多于大流行前（65.5 ± 6.7%）或隔离结束时（67.7 ± 7.1%）（均<0.05）。此外，参与者在居家隔离期间进行的身体活动次数更少，持续时间更短（均<0.05）。此外，在大流行前的情况和降级阶段 0 之间，身体活动行为没有差异。根据我们的结果，居家隔离可能会由于增加的久坐生活方式和减少的体力活动而对健康产生负面影响。因此，我们的非监督运动方案至少在这个阶段似乎不是一种完全有效的策略。
