Effects of resistance training on exercise capacity in elderly patients with chronic obstructive pulmonary disease: a meta-analysis and systematic review
The objective of this study was to summarize and determine the effectiveness of resistance training on exercise capacity in patients with chronic obstructive pulmonary disease (COPD).
We searched PubMed, EMBASE, Cochrane Library, and two Chinese databases (China National Knowledge Infrastructure and Wanfang Data) to identify articles written in English or Chinese and published from January 2000 to January 2019. Randomized controlled trials were included if they evaluated the effects of resistance training on exercise capacity in COPD patients. We assessed the quality of the trials using the Physiotherapy Evidence Database Scale. Data from these studies were pooled to calculate weighted mean difference (WMD) or standardized mean difference (SMD) with 95% confidence intervals (CI).
Eleven studies with a total of 405 participants met the inclusion criteria. Compared with the non-exercise control group, resistance training significantly improved 6-min walking distance (WMD, 54.52; 95% CI 25.47–83.56; I2 = 43%; P = 0.14), transfer numbers for the 6-min pegboard and ring test (WMD, 25.17; 95% CI 10.17–40.16; I2 = 0%; P = 0.55), and tolerance time for the unsupported upper-limb exercise test (SMD, 0.41; 95% CI 0.03–0.79; I2 = 0%; P = 0.83). There were no significant differences in constant work rate endurance test results or in peak oxygen uptake between the two groups.
Resistance training was an effective approach to improve functional exercise capacity, endurance exercise capacity, and peak exercise capacity in COPD patients.
KeywordsChronic obstructive pulmonary disease Resistance training Functional exercise capacity Endurance exercise capacity Meta-analysis
NL, PL: conception of the study and development of protocol. NL, YL, ZW participated in all stages of the study design, systematic literature view, statistical analyses and helped to draft the manuscript. JL, XL, WW contributed to the interpretation of data and revision of the manuscript. All authors have read and approved the final manuscript.
This systematic review was funded by national fitness project of General Administration of Sport of China (No. 2017B021), the “Qi Kang” young innovative talents project of School of Rehabilitation Medicine in Shanghai University of Traditional Chinese Medicine, the directed research grants from Science and Technology Commission of Shanghai Municipality (No. 18DZ1200600), and National Natural Science Foundation of China (No. 81902307).
Compliance with ethical standards
Conflict of interests
The authors declare that they have no conflict of interest.
Statement of human and animal rights
This review does not contain any experiments involving human participants or animals performed by any authors.
For this review, informed consent forms were not required.
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