Document Detail

Interval versus continuous training in lung transplant candidates: A randomized trial.
MedLine Citation:
PMID:  22884381     Owner:  NLM     Status:  In-Data-Review    
BACKGROUND: Interval (IT) and continuous training (CT) represent well-established exercise modalities in patients with moderate to severe chronic obstructive pulmonary disease (COPD). However, their effects and feasibility in patients with end-stage COPD remain unclear.
METHODS: Sixty patients (53 ± 6 years, 53% women) being evaluated for lung transplantation where randomly assigned either to IT (n = 30, cycling at 100% peak work rate for 30 seconds alternating with 30 seconds of rest) or CT (n = 30, cycling at 60% of peak work rate) during a 3-week inpatient rehabilitation program. Both exercise protocols yielded an equivalent amount of total work. Patients had a mean forced expiratory volume at 1 second (FEV(1)) of 25% ± 8% of predicted value.
RESULTS: Patients in both groups achieved similar clinically relevant improvements in 6-minute walking distance of 35 ± 29 meters for IT and 36 ± 43 meters for CT, with a between-group difference of 0.3 meters (95% confidence interval, -18.2 to 18.8). Changes in lung function parameters were not significant. Perceived intensity of dyspnea was significantly (p < 0.05) lower in IT (Borg 6.2 ± 1.8) compared with CT (Borg 7.1 ± 1.7). Patients required a median of 5 unintended breaks (interquartile range, 2-28) during IT exercise and 29 (interquartile range, 6-68) during CT (p < 0.001).
CONCLUSIONS: IT is associated with a lower intensity of dyspnea during exercise and fewer unintended breaks but achieves similar improvements in exercise capacity compared with CT in pre-lung transplant COPD patients.
Rainer Gloeckl; Martin Halle; Klaus Kenn
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation     Volume:  31     ISSN:  1557-3117     ISO Abbreviation:  J. Heart Lung Transplant.     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-08-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9102703     Medline TA:  J Heart Lung Transplant     Country:  United States    
Other Details:
Languages:  eng     Pagination:  934-41     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 International Society for Heart and Lung Transplantation. Published by Elsevier Inc. All rights reserved.
Department of Respiratory Medicine & Sports Therapy, Schoen Klinik Berchtesgadener Land, Schoenau am Koenigssee, Germany.
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