[Effect of physical exertion on the changes in arterial blood pressure, heart rate and electrocardiogram in orthostatic position].

Variations in arterial systolic (APs) and diastolic (APd) pressure, heart rate (HR) and electrocardiograms (ECG) were investigated in 22 normal men, 28 patients with arterial hypertension and 10 patients with chronic ischemic heart disease. Measurements were made during active orthostatic tests applied before and after submaximal exercises. In all three groups, APs diminished after exercise to a greater extent than before exercise. In hypertensive patients, APd increased significantly after exercise but changed insignificantly before exercise. In hypertensive patients with depressed T and ST, the level of ECG changes after exercise diminished by more than 50% as compared to the pre-exercise value.