Walking distance improvements in chronic obstructive pulmonary disease patients after home-based daily respiratory muscle training: A pilot study

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Published: Sep 11, 2024
DOI: https://doi.org/10.14456/apst.2024.76
Keywords:
Breathing exercise Home-based exercise Inspiratory muscle training Six-minute walk test

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Eakarach Wongsaya
Research and Training Center for Enhancing Quality of Life of Working-Age People and Research and Graduate Studies, Khon Kaen University, Khon Kaen, Thailand
Saowanee Nakmareong
School of Physical Therapy, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, Thailand

Abstract

This study investigated the effects of home-based daily inspiratory muscle training (IMT) on inspiratory muscle strength and exercise capacity among chronic obstructive pulmonary disease (COPD) patients. The participants comprised 14 elderly men with moderate to severe COPD, who were randomly divided into two groups, the IMT group (n = 7) and the control group (n = 7). In the IMT group, participants followed a daily home-based IMT exercise program at moderate resisted load for 6 weeks, while the control group had no intervention. Maximal inspiratory pressure (MIP, an index of inspiratory muscle strength), 6-minute walk distance (6MWD) and cardiovascular responses following the 6-minute walk test (6MWT) were examined at baseline and after the program.  The results showed that, after the training period, the inspiratory muscle strength and 6MWD values in the IMT group were significant increased compared with control group (p = 0.010 and 0.038 respectively). Greater improvement in cardiorespiratory responses following 6MWT was observed in the IMT group, as exhibit by a significant decrease in dyspnea and heart rate compared with the control group. Additionally, inspiratory muscle strength was significantly positively associated with 6MWD (r = 0.735, p = 0.003). In conclusion, a 6-week home-based IMT exercise program is an effective intervention for increased respiratory muscle strength, increased exercise capacity, and attenuated dyspnea among COPD patients. Such, a program might be a feasible alternative for COPD patients, especially those who are unable to adhere to the aerobic exercise recommendations, to enhance their exercise.

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How to Cite
Wongsaya, E., & Nakmareong, S. (2024). Walking distance improvements in chronic obstructive pulmonary disease patients after home-based daily respiratory muscle training: A pilot study. Asia-Pacific Journal of Science and Technology, 29(05), APST–29. https://doi.org/10.14456/apst.2024.76
Issue
Vol. 29 No. 05 (2024): SEP-OCT
Section
Research Articles
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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