Respiratory Muscle Endurance Training in Chronic Obstructive Pulmonary Disease: Impact on Exercise Capacity, Dyspnea, and Quality of Life
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Journal Article
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Published
Recommended form of citation (APA)
Scherer, T. A., Spengler, C. M., Owassapian, D., Imhof, E., & Boutellier, U. (2000). Respiratory Muscle Endurance Training in Chronic Obstructive Pulmonary Disease: Impact on Exercise Capacity, Dyspnea, and Quality of Life. American Journal of Respiratory and Critical Care Medicine, 162(5), 1709-1714. https://doi.org/10.1164/ajrccm.162.5.9912026
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Proforis OA-status
Green OA - published version
Topic PHSG
Bewegung und Sport
Fields of Science and Technology (OECD)
Clinical medicine
Abstract
Inspiratory muscle training may have beneficial effects in certain patients with chronic obstructive pulmonary disease (COPD). Because of the lack of a home training device, normocapnic hyperpnea has rarely been used as a training mode for patients with COPD, and is generally considered unsuitable to large-scale application. To study the effects of hyperpnea training, we randomized 30 patients with COPD and ventilatory limitation to respiratory muscle training (RMT; n = 15) with a new portable device or to breathing exercises with an incentive spirometer (controls; n = 15). Both groups trained twice daily for 15 min for 5 d per week for 8 wk. Training-induced changes were significantly greater in the RMT than in the control group for the following variables: respiratory muscle endurance measured through sustained ventilation ( + 825 ± 170 s [mean ± SEM] versus − 27 ± 61 s, p < 0.001), inspiratory muscle endurance measured through incremental inspiratory threshold loading ( + 58 ± 10 g versus + 21.7 ± 9.5 g, p = 0.016), maximal expiratory pressure ( + 20 ± 7 cm H2O versus − 6 ± 6 cm H2O, p = 0.009), 6-min walking distance ( + 58 ± 11 m versus + 11 ± 11 m, p = 0.002), V˙ o 2peak ( + 2.5 ± 0.6 ml/kg/min versus − 0.3 ± 0.9 ml/kg/min, p = 0.015), and the SF-12 physical component score ( + 9.9 ± 2.7 versus + 1.8 ± 2.4, p = 0.03). Changes in dyspnea, maximal inspiratory pressure, treadmill endurance, and the SF-12 mental component score did not differ significantly between the RMT and control groups. In conclusion, home-based respiratory muscle endurance training with the new device used in this study is feasible and has beneficial effects in subjects with COPD and ventilatory limitation.
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Published Version
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Open Access
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All rights reserved
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