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Employing seven male subjects, the influence of four different ergometer flywheels with the moments of inertia at the crankshaft (J') = 5.5, 10.5, 16.5, and 19.5 kg.m2 on 6-min load pulse sum (LPS), the heart rate integrated over 6-min was investigated. The J' was demonstrated to influence LPS at each of the corresponding rotational energies of the… (More)
Heart rate, breathing rate, electromyogram, skin resistance and skin temperature were measured when 11 experienced technicians climbed up a mast of 135 m height by means of a digital memory system, a new method for recording demand profiles. To separate physical and psychological strain the same parameters were measured in a laboratory simulating the… (More)
Different methods for measurement and assessment of industrial noise are discussed. It is shown, that momentary the best approach to stress caused by noise is the "Trakt-Maximalpegel-Verfahren" with a cycle time of 5 s. For more exact description of acoustic recording of sound level and harmonic analyzis are indispensable.