Inspiratory muscle training in bronchiectasis patients: a prospective randomized controlled study

Objective: To investigate the efficacy and feasibility of home-based inspiratory muscle training in patients with bronchiectasis.Design: A prospective, single-blind, randomized, controlled study.Setting: Outpatient clinic of a tertiary care medical centre.Methods: Twenty-six patients with bronchiect...

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Bibliographic Details
Published in:Clinical rehabilitation 2011-06, Vol.25 (6), p.524-536
Main Authors: Liaw, Mei-Yun, Wang, Yi-Hsi, Tsai, Yu-Chin, Huang, Kuo-Tung, Chang, Pei-Wen, Chen, Yung-Che, Lin, Meng-Chih
Format: Article
Language:English
Subjects:
Airway management
Analysis
Breathing Exercises
Bronchiectasis
Bronchiectasis - physiopathology
Bronchiectasis - rehabilitation
Chronic obstructive pulmonary disease
Critical care
Dyspnea
Feasibility Studies
Female
Home based
Home Care Services
Hospitals
Humans
Internal medicine
Male
Medicine
Middle Aged
Muscle strength
Muscles
Muscles (function)
Outcome Assessment (Health Care) - methods
Outpatient care facilities
Patients
Prospective Studies
Quality of Life
Questionnaires
Rehabilitation
Respiratory Function Tests - methods
Saturation
Sickness Impact Profile
Spirometry
Strength (training)
Stress
Tomography
Training (programs)
University colleges
Walking
Walking - physiology
Work
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Summary:Objective: To investigate the efficacy and feasibility of home-based inspiratory muscle training in patients with bronchiectasis.Design: A prospective, single-blind, randomized, controlled study.Setting: Outpatient clinic of a tertiary care medical centre.Methods: Twenty-six patients with bronchiectasis were randomly divided into inspiratory muscle training and control groups. In the inspiratory muscle training group (n = 13), the training programme started with an intensity of 30% maximal inspiratory pressure (MIP), which was increased by 2 cmH2O each week, for 30 minutes daily, 5 days a week for eight weeks. The control group (n = 13) did not receive inspiratory muscle training. Main outcome measures included spirometry, resting oxyhaemoglobin saturation by pulse oximetry (SpO2), lowest SpO2 and Borg Scale during 6-minute walking tests, 6-minute walking distance (6MWD), 6-minute walking work (6Mwork), MIP, maximal expiratory pressure (MEP) and St George’s Respiratory Questionnaire.Results: There were significant differences in change from baseline in 6MWD (411.9 (133.5) vs. 473.2 (117.2) m, P = 0.021), 6Mwork (21 051.0 (8286.7) vs. 23 915.5 (8343.0) kg-m, P = 0.022), MIP (60.8 (21.8) vs. 84.6 (29.0) cmH2O, P = 0.004), and MEP (72.3 (31.1) vs. 104.2 (35.7) cmH2O, P = 0.004) in the inspiratory muscle training group. Significant improvements in both MIP (23.8 (25.3) vs. 2.3 (16.4) cmH2O, adjusted P-value = 0.005) and MEP (31.9 (30.8) vs. 11.5 (20.8) cmH2O, adjusted P-value = 0.038) levels after adjusting for age by linear regression analysis were observed between groups.Conclusions: An eight-week home-based inspiratory muscle training is feasible and effective in improving both inspiratory and expiratory muscle strength, but has no effect on respiratory function and quality of life in patients with bronchiectasis.
ISSN:0269-2155
1477-0873
DOI:10.1177/0269215510391682