A Comparison of High Intensity Interval Training with Circuit Training in a Short-Term Cardiac Rehabilitation Programme for Patients with Chronic Heart Failure
- *Corresponding Author:
- Louisa Beale
School of Sport and Service Management
University of Brighton, Denton Road
Eastbourne BN20 7SR, UK
Tel: 01273 643759
Fax: 01273 643704
E-mail: [email protected]
Received Date: July 22, 2013; Accepted Date: August 25, 2013; Published Date: August 28, 2013
Citation: Beale L, McIntosh R, Raju P, Guy L, Brickley G (2013) A Comparison of High Intensity Interval Training with Circuit Training in a Short-Term Cardiac Rehabilitation Programme for Patients with Chronic Heart Failure. Int J Phys Med Rehabil 1:151. doi: 10.4172/2329-9096.1000151
Copyright: © 2013 Beale L, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
High intensity interval exercise may be a more effective training method than moderate intensity exercise more commonly applied in cardiac rehabilitation. This randomized controlled trial compared the effects of high intensity interval training with moderate intensity circuit training on exercise tolerance and quality of life in patients with chronic heart failure. Twenty six patients with systolic heart failure (left ventricular ejection fraction 15-40%, New York Heart Association class II-III, age 62-87 years) were randomly assigned to circuit training (n=13) or high intensity interval training (n=13) during a 6 week cardiac rehabilitation programme. At baseline and on completion peak oxygen consumption (VO2peak), oxygen consumption at ventilatory threshold (VT), ventilatory efficiency and disease specific quality of life were assessed. There was a significant increase in VO2peak after training in the circuit group only (0.97 ml.kg-1.min-1 P=0.021). Both groups showed significant improvements in VT (circuit 0.55 ml.kg-1.min-1 P=0.050; interval 1.70 ml.kg-1.min-1 P=0.006) and in quality of life (circuit-7 points P=0.017; interval-5 points P=0.050). There were no significant differences between the two training methods. High intensity interval exercise offers an alternative training mode for improving sub maximal exercise tolerance and quality of life in patients with chronic heart failure. However, the improvements did not match those reported in studies using more frequent and longer duration training interventions.