Effects of human running cadence and experimental validation of the bouncing ball model

Bencsik, László and Zelei, Ambrus (2016) Effects of human running cadence and experimental validation of the bouncing ball model. MECHANICAL SYSTEMS AND SIGNAL PROCESSING. MSSP16-335R1. ISSN 0888-3270

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Abstract

The biomechanical analysis of human running is a very complex problem, because of the large number of parameters and degrees of freedom. However, simplified models can be constructed, which are usually characterized by some fundamental parameters, like step length, foot strike pattern and cadence. The bouncing ball model of human running is analysed theoretically and experimen- tally in this work. It is a minimally complex dynamic model if the aim is to estimate the energy cost of running and the tendency of ground-foot impact intensity as a function of cadence. The model shows that cadence has a direct effect on energy efficiency of running and ground-foot impact intensity, further- more it shows that higher cadence implies lower risk of injury and better energy efficiency. An experimental data collection of 121 amateur athletes is presented. The experimental results validate the model and provides information about the walk-to-run transition speed and the typical development of cadence and grounded phase ratio in different running speed ranges.

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