Abstract: A heart monitoring device comprises a sensing unit for detecting R-waves of an ECG signal, an ECG signal parameters determining unit responsive to the output signal of the sensing unit and producing at three outputs six signals related to features of the R-to-R intervals, a logic circuit having its inputs connected to the outputs of the ECG signal parameters determining unit, a storage unit having its inputs connected to the outputs of the logic circuit, an indication unit counting and indicating the results obtained by monitoring heart activity and having inputs connected to the outputs of the logic circuit, a timing unit having an input connected to the output of the sensing unit and outputs connected to the control inputs of the ECG signal parameters determining unit, the storage unit, and the indication unit. The ECG signal parameters determining unit, the storage unit and the indication unit are provided with reset inputs connected to a reset unit.

Abstract: An apparatus for determining levels of physical loads, having a housing with two switching elements disposed therein and electrically coupled to an indicator and through a cut-out switch to a power supply unit. The apparatus further comprises a seismic mass constituted by a permanent magnet and secured in the housing by means of elastic suspension elements. The switching elements are positioned along the direction of movement of the seismic mass. The indicator includes three indicating elements indicating, respectively, the minimum, the optimum and the maximum level of physical load.