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Title: Intermittent versus continuous exercise training in chronic heart failure: A meta-analysis
Contributor(s): Smart, Neil  (author)orcid ; Dieberg, Gudrun  (author)orcid ; Giallauria, Francesco  (author)
Publication Date: 2013
DOI: 10.1016/j.ijcard.2011.10.075
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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), (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.
Publication Type: Journal Article
Source of Publication: International Journal of Cardiology, 166(2), p. 352-358
Publisher: Elsevier Ireland Ltd
Place of Publication: Ireland
ISSN: 1874-1754
Field of Research (FOR): 110201 Cardiology (incl Cardiovascular Diseases)
Socio-Economic Outcome Codes: 920103 Cardiovascular System and Diseases
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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