| Abstract: | The intensity and duration of exercise were investigated for their influence on the parameters of myocardial ischemia and its severity in 25 patients with Functional Classes II-IV angina who underwent intermittent, stepwise increasing exercises. It was ascertained that there were basic correlations between the intensity and duration of exercise and conventional myocardial ischemic parameters and there were no such correlations for threshold parameters that allowed the coronary reserve and function to be objectively evaluated in patients with angina. The maximal correlation slope angles between heart rate, ST regiment displacement and exercise intensity of various duration were proposed for individual characterization of the specific features of control of the cardiovascular system and severity of myocardial ischemia. |
