Abstract
A device called FeelBreathe (FB)® was designed, developed, and patented for inspiratory muscle training. The main aim was to determine the acute responses on lung ventilation, gas exchange, and heart rate during exercise in patients with chronic obstructive pulmonary disease (COPD) with and without the use of FB. In this study, a randomized cross-over trial was performed with 18 men diagnosed with COPD (FEV1 between 30% and 70% of its predicted value). Each participant randomly conducted two trials with 30 min of rest between them with the same protocol on a treadmill for 10 min at a constant rate of 50% of VO2peak. Each test was performed randomly and in a crossover randomized design in two different conditions: (1) oronasal breathing; and (2) nasal breathing with FB (nasal ventilatory flow restriction device). It was observed that FB had positive effects on dynamic hyperinflation, breathing pattern, and breathing efficiency, with higher expiratory and inspiratory time. Despite these differences, blood oxygen saturation percentage, oxygen uptake, and heart rate showed a similar response for both conditions during exercise. The results suggest that exercise performed with FB improved ventilatory responses compared to the oronasal mode in COPD patients. This new tool could be used during most daily tasks and exercise programs.
Highlights
Chronic obstructive pulmonary disease (COPD) is a pulmonary disorder characterized by the presence of inflammation, producing obstruction of the airways, deterioration of the quality of life, dyspnea, and intolerance to physical exercise [1], due in part to impairment of muscular strength and resistance and to dynamic hyperinflation, associated with a possible premature death [2]
The rating of perceived exertion after the maximal incremental exercise test was significantly higher in the FB trial (p < 0.01, Cohens d = 0.61)
The main finding of the study was that the FB device is a possible effective tool for inspiratory muscle training, since this study shows that FB caused higher expiratory and inspiratory time and increased the efficiency of breathing patterns compared to oronasal breathing (ONB) in a group of chronic obstructive pulmonary disease (COPD) patients
Summary
Chronic obstructive pulmonary disease (COPD) is a pulmonary disorder characterized by the presence of inflammation, producing obstruction of the airways, deterioration of the quality of life, dyspnea, and intolerance to physical exercise [1], due in part to impairment of muscular strength and resistance and to dynamic hyperinflation, associated with a possible premature death [2]. Respiratory muscle training is considered of vital importance, since it could improve the exercise capacity, dyspnea, Int. J. Res. Public Health 2020, 17, 4876; doi:10.3390/ijerph17134876 www.mdpi.com/journal/ijerph
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Environmental Research and Public Health
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
