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Intermittent versus continuous exercise training in chronic heart failure: A meta-analysis.
MedLine Citation:
PMID:  22100179     Owner:  NLM     Status:  Publisher    
INTRODUCTION: We conducted a meta-analysis of randomized, controlled trials of combined strength and intermittent aerobic training, intermittent aerobic training only and continuous exercise training in heart failure patients. METHODS: A systematic search was conducted of Medline (Ovid) (1950-September 2011), (1974-September 2011), Cochrane Central Register of Controlled Trials and CINAHL (1981-September 19 2011). The search strategy included a mix of MeSH and free text terms for the key concepts heart failure, exercise training, interval training and intermittent exercise training. RESULTS: The included studies contained an aggregate of 446 patients, 212 completed intermittent exercise training, 66 only continuous exercise training, 59 completed combined intermittent and strength training and 109 sedentary controls. Weighted mean difference (MD) in Peak VO(2) was 1.04mlkg(-1)min(-1) and (95% C.I.) was 0.42-1.66 (p=0.0009) in intermittent versus continuous exercise training respectively. Weighted mean difference in Peak VO(2) was -1.10mlkg(-1)min(-1) (95% C.I.) was -1.83-0.37 p=0.003 for intermittent only versus intermittent and strength (combined) training respectively. In studies reporting V(E)/VCO(2) for intermittent versus control groups, MD was -1.50 [(95% C.I. -2.64, -0.37), p=0.01] and for intermittent versus continuous exercise training MD was -1.35 [(95% C.I. -2.15, -0.55), p=0.001]. Change in peak VO(2) was positively correlated with weekly exercise energy expenditure for intermittent exercise groups (r=0.48, p=0.05). CONCLUSIONS: Combined strength and intermittent exercise appears superior for peak VO(2) changes when compared to intermittent exercise of similar exercise energy expenditure.
Neil A Smart; Gudrun Dieberg; Francesco Giallauria
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-16
Journal Detail:
Title:  International journal of cardiology     Volume:  -     ISSN:  1874-1754     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8200291     Medline TA:  Int J Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.
School of Science and Technology, University of New England, Armidale, NSW 2351, Australia.
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