Objective In March 2020, several countries banned unnecessary outdoor activities during COVID-19, commonly called ‘lockdowns. These lockdowns have the potential to impact associated levels of physical activity and sedentary behaviour. Given the numerous health outcomes associated with physical activity and sedentary behaviour, the aim of this review was to summarise literature that investigated differences in physical activity and sedentary behaviour before vs during the COVID-19 lockdown. Design, data sources and eligibility criteria Electronic databases were searched from November 2019 to October 2020 using terms and synonyms relating to physical activity, sedentary behaviour and COVID-19. The coprimary outcomes were changes in physical activity and/or sedentary behaviour captured via device-based measures or self-report tools. Risk of bias was measured using the Newcastle-Ottawa Scale. Results Sixty six articles met the inclusion criteria and were included in the review (total n=86 981). Changes in physical activity were reported in 64 studies, with the majority of studies reporting decreases in physical activity and increases in sedentary behaviours during their respective lockdowns across several populations, including children and patients with a variety of medical conditions. Conclusion Given the numerous physical and mental benefits of increased physical activity and decreased sedentary behaviour, public health strategies should include the creation and implementation of interventions that promote safe physical activity and reduce sedentary behaviour should other lockdowns occur.

中文翻译：

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从以前到大流行COVID-19大流行封锁期间身体活动和久坐行为的变化：系统综述

目标2020年3月，几个国家禁止在COVID-19期间进行不必要的户外活动，通常称为“锁定”。这些锁定有可能影响相关的体育活动水平和久坐行为。鉴于与体育锻炼和久坐行为相关的众多健康结果，本综述的目的是总结研究COVID-19锁定之前和期间的体育锻炼和久坐行为差异的文献。设计，数据来源和资格标准自2019年11月至2020年10月使用与体育活动，久坐行为和COVID-19有关的术语和同义词搜索电子数据库。共同的主要结果是通过基于设备的措施或自我报告工具捕获的体育活动和/或久坐行为的变化。使用纽卡斯尔-渥太华量表测量偏倚风险。结果符合纳入标准的66篇文章被纳入评价（总n = 86 981）。64项研究报告了体育活动的变化，大多数研究报告说，他们在几个人群（包括儿童和患有各种医疗状况的患者）各自的禁闭期间，体育活动的减少和久坐行为的增加。结论鉴于增加体育锻炼和减少久坐行为对身体和精神的好处，公共卫生策略应包括制定和实施干预措施，以促进安全的体育锻炼并减少其他久坐行为的久坐行为。结果符合纳入标准的66篇文章被纳入评价（总n = 86 981）。64项研究报告了体育活动的变化，大多数研究报告说，他们在几个人群（包括儿童和患有各种医疗状况的患者）各自的禁闭期间，体育活动的减少和久坐行为的增加。结论鉴于增加体育锻炼和减少久坐行为对身体和精神的好处，公共卫生策略应包括制定和实施干预措施，以促进安全的体育锻炼并减少其他久坐行为的久坐行为。结果符合纳入标准的66篇文章被纳入评价（总n = 86 981）。64项研究报告了体育活动的变化，大多数研究报告说，他们在几个人群（包括儿童和患有各种医疗状况的患者）各自的禁闭期间，体育活动的减少和久坐行为的增加。结论鉴于增加体育锻炼和减少久坐行为对身体和精神的好处，公共卫生策略应包括制定和实施干预措施，以促进安全的体育锻炼并减少其他久坐行为的久坐行为。大多数研究报告称，在几个人群中，包括儿童和患有各种医疗状况的患者，在各自的禁闭期间，他们的体育活动减少，久坐行为增加。结论鉴于增加体育锻炼和减少久坐行为对身体和精神的好处，公共卫生策略应包括制定和实施干预措施，以促进安全的体育锻炼并减少其他久坐行为的久坐行为。大多数研究报告称，在几个人群中，包括儿童和患有各种医疗状况的患者，在各自的禁闭期间，他们的体育活动减少，久坐行为增加。结论鉴于增加体育锻炼和减少久坐行为对身体和精神的好处，公共卫生策略应包括制定和实施干预措施，以促进安全的体育锻炼并减少其他久坐行为的久坐行为。