Abstract: The cycloergometer for the training of an impaired heart is of the type creating a constant load and nearly identical load for any exercising person, the load being applied with the person in a supine position. The apparatus comprises a platform for accommodating the supine person and a vertically adjustable loading unit positionable at a predetermined height above the platform, the loading unit generating a resistance or load of 15.+-.5 watts. A control/monitoring unit with a preprogrammed data processor is connected to various sensors to monitor specific parameters set forth in the program.The cycloergometer produces a pure volume load under program control against diminished peripheral resistance at a low heart rate and substantially maximized stroke volume which improves cardiac function.