|Objectives: The aim of this study is to assess an impact of modified aerobic-resistance exercise on cardiorespiratory indicators in patients after acute coronary event, and evaluate the differences between monitored parameters in different age groups. Methods: The study was conducted on a group of 106 patients (85 percent of men) of an average age of 60,4±10,9 years, with left ventricular ejection fraction of 57,4±7,2 percent. All subjects went through an acute coronary event. The time elapsed between the occurence of a coronary event and the beginning of the training program was 35±8 days. In patients after coronary artery bypass grafting, the time passed was 50±16 days on average. All patients received a two-month aerobic-resistance training with (3-times/week). The length of a training unit was set to 100 minutes. Results: A significant negative correlation between age and average values of monitored parameters was observed. Even though the values of all parameters are decreasing with increasing age, a shift towards higher values in all parameters occurred after completing the training program. The study reveals that there are interindividual differences between the parameter values. A significant difference in individual parameters was found between different age groups. The result of the study shows that a given parameter could characterize each age group. Completing the interventional training program also led to a significant increase of exercise tolerance (1,8±0,3 vs. 2,0±0,4 W/kg; p<0.001) and of peak oxygen consumption (22,8±4,5 vs. 25,9±5,5 ml/kg/min., p<0.001). Conclusion: Interindividual differences between the parameter values have been identified. This could be helpful in methodological conception of preventive training programs for patients suffering from cardiovascular disease. The mutual connection between the parameter values and age groups does not relate only to a safer training intensity determination, but also to a more precisely targeted application of different training modalities in order to achieve an optimal final training effect.