Journal article
High-intensity inspiratory muscle training in COPD
The European respiratory journal, Vol.27(6), pp.1119-1128
2006
PMID: 16772388
Abstract
The aim of the present study was to investigate the effects of an interval-based high-intensity inspiratory muscle training (H-IMT) programme on inspiratory muscle function, exercise capacity, dyspnoea and health-related quality of life (QoL) in subjects with chronic obstructive pulmonary disease.
A double-blind randomised controlled trial was performed. Sixteen subjects (11 males, mean forced expiratory volume in one second (FEV1) 37.4±12.5%) underwent H-IMT performed at the highest tolerable inspiratory threshold load (increasing to 101% of baseline maximum inspiratory pressure). Seventeen subjects (11 males, mean FEV1 36.5±11.5%) underwent sham inspiratory muscle training (S-IMT) at 10% of maximum inspiratory pressure. Training took place three times a week for 8 weeks and was fully supervised. Pre- and post-training measurements of lung function, maximum inspiratory pressure, maximum threshold pressure, exercise capacity, dyspnoea and QoL (Chronic Respiratory Disease Questionnaire; CRDQ) were obtained.
H-IMT increased maximum inspiratory pressure by 29%, maximum threshold pressure by 56%, 6-min walk distance by 27 m, and improved dyspnoea and fatigue (CRDQ) by 1.4 and 0.9 points per item, respectively. These changes were significantly greater than any seen following S-IMT.
In conclusion, high-intensity inspiratory muscle training improves inspiratory muscle function in subjects with moderate-to-severe chronic obstructive pulmonary disease, yielding meaningful reductions in dyspnoea and fatigue.
Details
- Title
- High-intensity inspiratory muscle training in COPD
- Authors/Creators
- K Hill - Sir Charles Gairdner HospitalS. C Jenkins - Sir Charles Gairdner HospitalD. L Philippe - Sir Charles Gairdner HospitalN Cecins - Sir Charles Gairdner HospitalK. L Shepherd - Sir Charles Gairdner HospitalD. J Green - School of Human Movement and Exercise Science, University of Western Australia, Nedlands, AustraliaD. R Hillman - Sir Charles Gairdner HospitalP. R Eastwood - Sir Charles Gairdner Hospital
- Publication Details
- The European respiratory journal, Vol.27(6), pp.1119-1128
- Publisher
- Maney
- Identifiers
- 991005592761807891
- Copyright
- © ERS Journals Ltd 2006
- Murdoch Affiliation
- Vice Chancellery
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.65 Allergy
- 1.65.192 COPD
- Web Of Science research areas
- Respiratory System
- ESI research areas
- Clinical Medicine