[Comparison of electrocardiographic tests with measured physical loading in ischemic heart disease]

The results of tests with physical load on a bicycle ergometer and treadmill in 50 patients with ischemic heart disease were compared. The control group was formed of 20 patients with neurocirculatory dystonia. Agreement between the results of both tests was encountered in 90% of patients with ischemic heart disease. The authors conclude that the tests do not differ essentially in the main indices (rate of cardiac contractions, index of cardiac activity at the peak of the load, time of uninterrupted work until the criteria of load cessation). It is suggested that tests on the treadmill and those on the bicycle ergometer in patients with ischemic heart disease are equivalent.