Effectiveness of inspiratory muscle training and multicomponent physical training in patients with post-COVID conditions: a systematic review and meta-analysis
Abstract
There is evidence that fatigue and dyspnea are among the most frequently reported symptoms of post-COVID condition. Therefore, several studies have investigated respiratory muscle or global peripheral muscle training as strategies to manage those symptoms. Despite evidence of potential benefits, conflicting results persist due to the heterogeneity of rehabilitation protocols and assessment tools. Thereby, the objective of this systematic review was to evaluate the effectiveness of inspiratory muscle training and multicomponent physical training in adults with dyspnea and fatigue for at least 12 weeks after COVID-19. A search was conducted in September 2024, in the Cochrane Library (Cochrane Central Register of Controlled Trials), EMBASE, PubMed/MEDLINE, PEDro, Lilacs/BVS, Web of Science, Scopus, and Epistemonikos databases. The inclusion criteria were randomized clinical trials published in any language that evaluated the effectiveness of inspiratory muscle training and multicomponent physical training to improve fatigue, dyspnea, and/or physical function in adults with persistent post-COVID symptoms. The risk of bias of the included studies and the certainty of the evidence were assessed using the RoB 2 and GRADE tools, respectively. After the screening process, seven randomized clinical trials were included. The total number of participants included in the studies was 449. Inspiratory muscle training significantly improved inspiratory muscle strength (maximal inspiratory…
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Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.
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