Abstract des Autors

Employing seven male subjects, the influence of four different ergometer flywheels with the moments of inertia at the crankshaft (J) 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 flywheels in the four work-load steps (50, 100, 150 and 200 W). The moment of inertia of ergometer flywheels J has a smoothing effect on the fluctuations of the rotational speed which are unavoidable during work on a cycle ergometer. The flywheel stores the leg forces acting on the pedals as rotational energy and opposes any rotational acceleration. If the J used is too small, equalization of the fluctuations of the rotational speed remains unsatisfactory. Flywheels with larger J require larger torques at the crankshaft for acceleration. Verf.-Referat (gekuerzt)