Abstract

The purpose of the study was to examine the consistency and variability of kinematical parameters in the technique used in the triple jump, one of the most complex athletics disciplines. An examination was made of two attempts of an elite female jumper performed in laboratory conditions during her preparation for the 2008 Olympic Games, where she placed 6th in the final. The Opto-track system and 3-D kinematical technology were used in to study the parameters of model technique. The analysis revealed that optimal results can be achieved with different programme motor strategies and that the motor pattern is generated by both consistent and variable parameters. The most consistent parameters of motor pattern in the subject were: partial distances of the individual phases, duration of the support phases in the takeoff actions, the angles of take-off and the vertical amplitude of the body centre of mass. Variability of the motor pattern was revealed mostly in the following kinematical parameters: the velocity in the last 5m of the approach, the length and proportion of the last two approach strides, the horizontal velocity of the body centre of mass in the take-off actions. Verf.-Referat