Bicycle training for 5 weeks improved work capacity (p<0.02) and VO2/kg/min (p<0.0006) in post-MI patients with mildly depressed cardiac function, but not in those with very depressed function.
Does 5 weeks of bicycle training improve cardiopulmonary and hemodynamic parameters in post-myocardial infarction patients with left ventricular dysfunction and prior cardiac failure?
Physical rehabilitation improves exercise tolerance in post-MI heart failure patients with mildly depressed cardiac function, but not in those with severely depressed function.
p-value: p=<0.02
The effects of bicycle training for 5 weeks were evaluated in 12 patients after myocardial infarction with left ventricular dysfunction (left ventricular ejection fraction < 40%) and at least one episode of cardiac failure in the past. The patients were divided into two groups of six according to the Weber classification: Group B (VO2/kg/min: 16-20) and Group C (VO2/kg/min: 10-15). Cardiopulmonary and hemodynamic parameters were evaluated during a maximal exercise test and a simultaneous catheterization of the right side of the heart before and after the training. An increase in the capacity for work was recorded in Group B (p < 0.02), while Group C remained unchanged. A statistically significant increase in minute ventilation (p < 0.05) and VO2/kg/min (p < 0.0006) was recorded in Group B. Group C showed an increase in the mean pulmonary arterial pressure (p < 0.03). All of the other parameters remained unchanged after training. We conclude that physical rehabilitation improves the tolerance to exercise in patients with a mildly depressed cardiac function (Group B) but not in patients with a very depressed cardiac function (Group C).
Scalvini et al. (Wed,) conducted a other in Myocardial infarction with left ventricular dysfunction and past cardiac failure (n=12). Bicycle training vs. Pre-training baseline was evaluated on Capacity for work (p=<0.02). Bicycle training for 5 weeks improved work capacity (p<0.02) and VO2/kg/min (p<0.0006) in post-MI patients with mildly depressed cardiac function, but not in those with very depressed function.
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