• Jilin Wang, Yanru Cui, Shuang Liu, Jiangxue Zhou, and Yingxia Sun.
• College of Acupuncture and Massage, Shandong University of Traditional Chinese Medicine, Jinan, China.
• Medicine (Baltimore). 2021 Aug 6; 100 (31): e26866e26866.

BackgroundThe coronavirus disease 2019 (COVID-19) outbreak began in late 2019 and spread rapidly throughout China and then the rest of the world. COVID-19 is a serious respiratory disease and many patients' exhibit varying levels of persistent parenchymal lung damage. However, there is currently a lack of effective rehabilitation treatments for COVID-19 patients with lung damage. Several clinical trials have shown that Liuzijue Qigong (LQG) can enhance the strength of respiratory muscles and overall quality of life. In this study, a meta-analysis approach was used to assess the effects of LQG on the lung function of COVID-19 patients during disease recovery.MethodsEight databases will be explored for relevant investigations including China National Knowledge Infrastructure, Wanfang, VIP, China Biology Medicine, EMBASE, PubMed, Web of Science, and the Cochrane Library. All databases will be explored for articles published from inception through July 2021. Data will be extracted independently by 2 researchers according to the eligibility criteria. Finally, RevMan 5.3.0 will be implemented for statistical analyses.ResultsThe results of this study will show the effects of LQG on the lung function of COVID-19 patients during disease recovery and will be submitted to a peer-reviewed journal for publication.ConclusionsThis study will provide reliable evidence based on the effects of LQG on the lung function of COVID-19 patients during disease recovery.Trial Registration NumberCRD42021268102.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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