Preliminary study: comparative effects of lung volume therapy between slow and fast deep-breathing techniques on pulmonary function respiratory muscle strength oxidative stress cytokines 6-minute walking distance and quality of life in persons with COPD

摘要

BackgroundLung volume therapy with the Voldyne^® device can improve lung volume and has a nonsignificant benefit on respiratory muscle strength via the slow deep-breathing technique (SDBT); whereas respiratory muscle training with a respiratory muscle trainer via the fast deep-breathing technique (FDBT) has produced a significant improvement in people with COPD. Thus, the aim of this study was to compare the efficiency of lung volume therapy with the Voldyne^® device with the SDBT and FDBT on pulmonary function, respiratory muscle strength, oxidative stress, cytokines, walking capacity, and quality of life (QoL) in people with COPD.