Background: We sought to synthesize the evidence about aerobic exercise intervention during pulmonary rehabilitation, and to further explore the difference in rehabilitation effects between water and land-based aerobic exercise. This review’s purpose is to provide a basis by which practitioners and therapists can select and create appropriate therapeutic programs.
Data of randomized and quasi-randomized controlled trials comparing training group (TG, aerobic exercise in water or land) and control group (CG, usual care) in chronic obstructive pulmonary disease (COPD) patients (January 1, 2000–December 28, 2019) were obtained from the Cochrane Library, PubMed, Embase, China National Knowledge Infrastructure, and Wanfang databases. Two researchers independently reviewed the literature, extracted the data, and evaluated the quality of the literature. Review Manager software (Rev Man 5.3; Cochrane, London, UK) was used for meta-analysis. The rehabilitation effect of water- or land based aerobic exercise was evaluated by subgroup analysis. The proposed systematic review details were registered in PROSPERO (CRD 42020168331).
Eighteen studies (1311 cases of COPD) were included. Meta-analysis results show that compared with the control group, the dyspnea level and functional and endurance exercise capacity in COPD patients were significantly improved after aerobic
exercise (P.05). Compared with land-based aerobic exercise, water- based aerobic exercise significantly improved the endurance exercise capacity in COPD patients (mean difference [MD]: 270.18, 95% CI: 74.61–465.75).
Medium to high-quality evidence shows that aerobic exercise can effectively improve dyspnea and exercise capacityin COPD patients. Compared with land-based aerobic exercise, water-based aerobic exercise had a significant additional effect in
improving the endurance exercise capacity of COPD patients.
Abbreviations: 6MWT =6-minute walking test, CG =control group, COPD =chronic obstructive pulmonary disease, CI =confidence interval, ESWT =endurance shuttle walk test, FEV1 =forced expiratory volume in the first second, FEV1/FVC =ratio of
forced expiratory volume in the first second to forced vital capacity, ISWT =incremental shuttle walk test, LG =land (exercise) group, LLMS =lower limb muscle strength, MD =mean difference, PR =pulmonary rehabilitation, SMD =standardized mean difference, TG=aerobic exercise in water or land, ULMS =upper limb muscle strength, WG =water (exercise) group.
Keywords: aerobic exercise, chronic obstructive pulmonary disease, exercise therapy, water