IMPORTANCE OF THE NONLINEAR TIME SERIES ANALYSIS IN SPORTS

  • K. Witte
  • P. Blaser
Keywords: nonlinear dynamics, fractal dimension, standing balance, breaststroke

Abstract

New possibilities for characterizing and discussing variability are obtained by means of nonlinear techniques of time series. Calculation of the fractal dimension allows determination of a measure of the degree of freedom. This fact is demonstrated using the example of standing balance. When the conditions are difficult the fractal dimension decreases. Another fact we discovered in a study of the breaststroke: When the load is increased the efficiency of the movement and the fractal dimension are also reduced.