Intermittent versus continuous exercise training in chronic heart failure: A meta-analysis

Title
Intermittent versus continuous exercise training in chronic heart failure: A meta-analysis
Publication Date
2013
Author(s)
Smart, Neil
( author )
OrcID: https://orcid.org/0000-0002-8290-6409
Email: nsmart2@une.edu.au
UNE Id une-id:nsmart2
Dieberg, Gudrun
( author )
OrcID: https://orcid.org/0000-0001-7191-182X
Email: gdieberg@une.edu.au
UNE Id une-id:gdieberg
Giallauria, Francesco
Type of document
Journal Article
Language
en
Entity Type
Publication
Publisher
Elsevier Ireland Ltd
Place of publication
Ireland
DOI
10.1016/j.ijcard.2011.10.075
UNE publication id
une:12830
Abstract
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), Embase.com (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 VO₂ was 1.04 ml kg⁻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 VO2 was -1.10 ml kg⁻¹min⁻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 VE/VCO₂ 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 VO₂ 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 VO₂ changes when compared to intermittent exercise of similar exercise energy expenditure.
Link
Citation
International Journal of Cardiology, 166(2), p. 352-358
ISSN
1874-1754
0167-5273
Start page
352
End page
358

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