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Aerobic interval training and continuous training equally improve aerobic exercise capacity in patients with coronary artery disease: the SAINTEX-CAD study.
- Source :
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International journal of cardiology [Int J Cardiol] 2015 Jan 20; Vol. 179, pp. 203-10. Date of Electronic Publication: 2014 Oct 25. - Publication Year :
- 2015
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Abstract
- Background: Exercise-based cardiac rehabilitation increases peak oxygen uptake (peak VO₂), which is an important predictor of mortality in cardiac patients. However, it remains unclear which exercise characteristics are most effective for improving peak VO₂ in coronary artery disease (CAD) patients. Proof of concept papers comparing Aerobic Interval Training (AIT) and Moderate Continuous Training (MCT) were conducted in small sample sizes and findings were inconsistent and heterogeneous. Therefore, we aimed to compare the effects of AIT and Aerobic Continuous Training (ACT) on peak VO₂, peripheral endothelial function, cardiovascular risk factors, quality of life and safety, in a large multicentre study.<br />Methods: Two-hundred CAD patients (LVEF >40%, 90% men, mean age 58.4 ± 9.1 years) were randomized to a supervised 12-week cardiac rehabilitation programme of three weekly sessions of either AIT (90-95% of peak heart rate (HR)) or ACT (70-75% of peak HR) on a bicycle. Primary outcome was peak VO₂; secondary outcomes were peripheral endothelial function, cardiovascular risk factors, quality of life and safety.<br />Results: Peak VO₂ (ml/kg/min) increased significantly in both groups (AIT 22.7 ± 17.6% versus ACT 20.3 ± 15.3%; p-time<0.001). In addition, flow-mediated dilation (AIT+34.1% (range -69.8 to 646%) versus ACT+7.14% (range -66.7 to 503%); p-time<0.001) quality of life and some other cardiovascular risk factors including resting diastolic blood pressure and HDL-C improved significantly after training. Improvements were equal for both training interventions.<br />Conclusions: Contrary to earlier smaller trials, we observed similar improvements in exercise capacity and peripheral endothelial function following AIT and ACT in a large population of CAD patients.<br /> (Copyright © 2014. Published by Elsevier Ireland Ltd.)
- Subjects :
- Aged
Coronary Artery Disease diagnosis
Exercise Test trends
Exercise Therapy trends
Exercise Tolerance physiology
Female
Humans
Longitudinal Studies
Male
Middle Aged
Prospective Studies
Coronary Artery Disease physiopathology
Coronary Artery Disease therapy
Exercise physiology
Exercise Test methods
Exercise Therapy methods
Oxygen Consumption physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1874-1754
- Volume :
- 179
- Database :
- MEDLINE
- Journal :
- International journal of cardiology
- Publication Type :
- Academic Journal
- Accession number :
- 25464446
- Full Text :
- https://doi.org/10.1016/j.ijcard.2014.10.155