Abstract

The short-term-high-intensity physical exertion is limited by the anaerobic capacity. This is particularly unsuited for patients with CHD and those who have suffered a myocardial infarction, because of 1. a high myocardial risk and 2. lack of a beneficial effect of anaerobic exercise on cardiac prevention and rehabilitation. Therefore it is unreasonable to test the anaerobic capacity of patients with such heart diseases. However it has been believed that the onset of angina pectoris coincides with the anaerobic threshold. In this case, the estimation of the lactic acid during ergometric testing would be of interest in patients with CHD. We, therefore, persued the question whether there is any correlation between the lactic acid concentration and the interruption of an ergometric stress test due to angina pectoris, dyspnea or ST-segment depression in such patients. Up to now our data have failed to support this: at the point where the exercise test was stopped, all had lactic acid levels below the anaerobic threshold of 4 mmol/l. Verf.-Referat