0523 : High-intensity interval training versus moderate continuous training in coronary artery disease. A randomized controlled trial - 05/05/16
Résumé |
Background |
Exercise-based cardiac rehabilitation increases peak oxygen uptake (peak VO2), which is the most important prognostic factor in cardiac patients. However, the most effective training strategies (interval training (IT) or moderate continuous training (MCT)) have yet to be identified in coronary artery disease (CAD) patients.
Our objective was to compare the effectiveness and the tolerance of those two modes of exercise during cardiac rehabilitation after an acute coronary syndrome (ACS) in a large single-center randomized study.
Methods |
Since July 2014 to May 2015, one hundred and thirty-six patients (90% male, mean age 57 years, mean LVEF 55%) performed 20 sessions, 2-3 sessions/week, including 35 min of biking, after a randomization to either high-intensity IT (6 cycles of 2 min at 90% peak VO2 alternating with active recovery) or to MCT (at 1st ventilatory threshold).
Results |
Baseline characteristics between 2 groups (62 in IT and 74 in MCT) were comparable. Both exercise programs demonstrated significant positive effects on aerobic capacity. Compared to MCT, IT program tended to increase more the peak VO2 and the peak workload (weighted mean difference +4±3.3 vs +2.7±4ml/kg/min, p=0.06 and +27.7±17vs+22.8±14.6 Watt, p=0.09 respectively). No adverse event was reported during training sessions.
Conclusion |
Interval Training was more effective for the improvement of peak VO2 than MCT, in CAD patients.
The author hereby declares no conflict of interest
Le texte complet de cet article est disponible en PDF.Vol 8 - N° 3
P. 265 - avril 2016 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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