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The Effects of Controlled Breathing during Pulmonary Rehabilitation in Patients with COPD


van Gestel, AJ R; Kohler, M; Steier, J; Teschler, S; Russi, E W; Teschler, H (2012). The Effects of Controlled Breathing during Pulmonary Rehabilitation in Patients with COPD. Respiration, 83(2):115-124.

Abstract

Background: Conventional pulmonary rehabilitation programs improve exercise tolerance but have no effect on pulmonary function in patients with chronic obstructive pulmonary disease (COPD). The role of controlled breathing using respiratory biofeedback during rehabilitation of patients with COPD remains unclear. Objectives: To compare the effects of a conventional 4-week pulmonary rehabilitation program with those of rehabilitation plus controlled breathing interventions. Methods: A randomized controlled trial was performed. Pulmonary function (FEV(1)), exercise capacity (6-min walking distance, 6MWD), health-related quality of life (chronic respiratory questionnaire, CRQ) and cardiac autonomic function (rMSSD) were evaluated. Results: Forty COPD patients (mean ± SD age 66.1 ± 6.4, FEV(1) 45.9 ± 17.4% predicted) were randomized to rehabilitation (n = 20) or rehabilitation plus controlled breathing (n = 20). There were no statistically significant differences between the two groups regarding the change in FEV(1) (mean difference -0.8% predicted, 95% CI -4.4 to 2.9% predicted, p = 0.33), 6MWD (mean difference 12.2 m, 95% CI -37.4 to 12.2 m, p = 0.16), CRQ (mean difference in total score 0.2, 95% CI -0.1 to 0.4, p = 0.11) and rMSSD (mean difference 2.2 ms, 95% CI -20.8 to 25.1 ms, p = 0.51). Conclusions: In patients with COPD undergoing a pulmonary rehabilitation program, controlled breathing using respiratory biofeedback has no effect on exercise capacity, pulmonary function, quality of life or cardiac autonomic function.

Abstract

Background: Conventional pulmonary rehabilitation programs improve exercise tolerance but have no effect on pulmonary function in patients with chronic obstructive pulmonary disease (COPD). The role of controlled breathing using respiratory biofeedback during rehabilitation of patients with COPD remains unclear. Objectives: To compare the effects of a conventional 4-week pulmonary rehabilitation program with those of rehabilitation plus controlled breathing interventions. Methods: A randomized controlled trial was performed. Pulmonary function (FEV(1)), exercise capacity (6-min walking distance, 6MWD), health-related quality of life (chronic respiratory questionnaire, CRQ) and cardiac autonomic function (rMSSD) were evaluated. Results: Forty COPD patients (mean ± SD age 66.1 ± 6.4, FEV(1) 45.9 ± 17.4% predicted) were randomized to rehabilitation (n = 20) or rehabilitation plus controlled breathing (n = 20). There were no statistically significant differences between the two groups regarding the change in FEV(1) (mean difference -0.8% predicted, 95% CI -4.4 to 2.9% predicted, p = 0.33), 6MWD (mean difference 12.2 m, 95% CI -37.4 to 12.2 m, p = 0.16), CRQ (mean difference in total score 0.2, 95% CI -0.1 to 0.4, p = 0.11) and rMSSD (mean difference 2.2 ms, 95% CI -20.8 to 25.1 ms, p = 0.51). Conclusions: In patients with COPD undergoing a pulmonary rehabilitation program, controlled breathing using respiratory biofeedback has no effect on exercise capacity, pulmonary function, quality of life or cardiac autonomic function.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Pneumology
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:2012
Deposited On:02 Apr 2012 11:12
Last Modified:22 Jun 2016 15:54
Publisher:Karger
ISSN:0025-7931
Publisher DOI:https://doi.org/10.1159/000324449
PubMed ID:21474911

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