Article

Peak oxygen uptake (VO2peak) is a strong predictor of survival in
cardiac patients. The aims of this study were to compare the effects of high
interval training (HIT) to moderate continuous training (MCT) on VO2peak and to
identify the safety of HIT in acute myocardial infarction patients with
drug-eluting stent. DESIGN: Twenty-eight acute myocardial infarction patients
with drug-eluting stent were randomized to either HIT at 85%-95 % of heart rate
reserve or MCT at 70%-85% of heart rate reserve, 3 days a week for 6 wks at a
cardiac rehabilitation clinic. Primary outcome was VO2peak at baseline and after
cardiac rehabilitation. RESULTS: Both HIT and MCT groups showed significant
increases in VO2peak and heart rate recovery after 6 wks of training. The 22.16%
improvement in VO2peak in the HIT group was significantly greater than the 8.48%
improvement in the MCT group (P = 0.021). There were no cardiovascular events
related to both HIT and MCT. CONCLUSIONS: HIT is more effective than MCT for
improving VO2peak in acute myocardial infarction patients with drug-eluting
stent. These findings may have important implications for more effective exercise
training in cardiac rehabilitation program.

Langue : ANGLAIS