Abstract: A method of and apparatus for measuring the heart pulse frequency, especially that of a moving test person for the purpose of a performance test, are disclosed. The mean value of the heart pulse frequency is determined from a measurement of the number of counted pulses of constant frequency which falls within a period of time defined by a predetermined number n of heart pulse periods E whereby the sum of the counted pulses is formed of three terms of a sum, the first term of which corresponds to the sum of the counted pulses within the period of time -1 to n -1, the second term of which corresponds to the negative value of the first term divided by the predetermined number n of heart pulse periods and the third term of which corresponds to the number of counted pulses within the period of time of n-1 to n. Signals detected at the body of a test person are amplified as a function of the peak value of the preceding signal and stored for a short time until the next signal is received.

Abstract: An improved ergometer having a driving machine for producing a rotational movement and set in motion by the user is disclosed. The ergometer includes a load device comprising a generator connected to the driving machine, a load connected to the generator output and a regulator which controls the electrical power dissipation of the load device based on a comparison between an actual value produced by an actual value transmitter and a given nominal value produced by a nominal value transmitter. The actual value transmitter comprises two measurement transducers the outputs of which are connected to the inputs of a multiplier. A first transducer, which is in the form of a wire strain gauge attached to an elastically deformable element of the driving machine, such as a foot pedal, measures the torque exerted by the user on the foot pedal and produces an output signal representing the measured torque.

Abstract: This disclosure relates to an ergometer for measuring physical exercise parameters during the application of physical energy by a user. The ergometer includes an arithmetic computer having a digital display device for determining and indicating various exercise parameters during the expenditure of physical energy by the user. The computer includes a stored program of exercise parameters and an input unit having a keyboard whereby personal data of the user, e.g., age, weight and sex, may be fed into the computer to be taken into account in the determination of physiological values during an exercise program. A heart-pulse receiver adapted to be connected to the user feeds values corresponding to the heart-pulse frequency of the user into the computer.

Abstract: An ergometer including a generator, a cooling fan for the generator, and an electronic circuit control for compensating for the mechanical losses thereof whereby the electrical load of the generator can be maintained within pre-set values.