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Abstract
Introduction: For the first time, in the aspect of biophysics, the reasons for the increase in the power of the threshold of anaerobic metabolism developed by the test person during functional diagnostics.
Methods: This occurs with an increase in the pedaling frequency with which the specified load on a bicycle ergometer in the range from 40 to 140 rpm (0.73-2.56 m/s) is overcome, have been substantiated.
Results: It was determined that the ratio of force and velocity in the studied range of pedaling frequencies (muscle contractile speed) corresponds to the hyperbolic type with displaced axes.
Conclusion: At the same time, with an increase in pedaling frequency, power increases in a cubic dependence, and the rate of oxygen consumption by the test subject decreases linearly in the process of overcoming the same fixed-power load set on a bicycle ergometer and vice versa.
Keywords: Energy fluctuations, force-speed dependence, aerobic performance, the threshold of anaerobic metabolism, actomyosin complex, functional diagnostics.
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