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Reverse left ventricular remodelling - effect of cardiac rehabilitation exercise training in myocardial infarction patients with preserved ejection fraction.

McGregor, G and Gaze, D and Oxborough, D and O'Driscoll, J and Shave, R (2015) Reverse left ventricular remodelling - effect of cardiac rehabilitation exercise training in myocardial infarction patients with preserved ejection fraction. European Journal of Physical and Rehabilitation Medicine. ISSN 1827-1804

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Abstract

BACKGROUND: In the increasingly prevalent population of post-myocardial infarction (MI) patients with preserved left ventricular (LV) ejection fraction (>45%), the effect of cardiac rehabilitation (CR) exercise training on LV structure and function is unknown. AIM: To examine the reverse LV remodelling effect of CR exercise training in post-MI patients with preserved LV ejection fraction (>45%). DESIGN: Prospective, longitudinal, controlled trial. SETTING: Outpatient CR program me. POPULATION: Fifty six asymptomatic, post-MI patients without residual myocardial ischemia and LV ejection fraction >45%. METHODS: Within 3-6 weeks of MI, and 10 weeks later, echocardiography and cardiopulmonary exercise testing were performed. An exercise training group (n=36) completed twice weekly gym based cardiovascular exercise (60-80% VO2 peak) and a resistance training programme, whilst a non-exercise group (n=20) did not. RESULTS: In comparison to the non-exercise group, in which there was no change, 10 weeks of CR exercise training resulted in increased VO2peak and reduced LV end diastolic and systolic volumes (all P<0.05 vs non-exercise group). CONCLUSION: In post-MI patients with preserved LV ejection fraction (>45%), CR exercise training is effective in improving functional capacity and reducing LV volumes. CLINICAL REHABILITATION IMPACT: In this previously unstudied population, the measurement of reverse LV volumetric remodelling may prove useful as an indicator of CR exercise programme efficacy. To maximise the potential clinical benefit from reverse LV remodelling, this patient group, should be actively encouraged to engage in CR exercise training.

Item Type: Article
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Edizioni Minerva Medica
Related URLs:
Date Deposited: 17 May 2016 08:55
Last Modified: 04 Nov 2016 00:50
URI: http://researchonline.ljmu.ac.uk/id/eprint/3239

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