engleski

Three dimensional evaluations of shot putting technique of highly skilled performer

The aim of this paper is to evaluate the rotational shot put technique of highly skilled Croatian shot put performer. The analyzed put (the best attempt) was picked out of the competitive season as the best put between 10 maximum efforts trails. The performance has been recorded by three video cameras operating at 50 frames per second positioned to provide 3D analyses. The collected video images were digitized using APAS. Transformation into 3D space was made by DLT method. The obtained 3-D coordinates of the digitized body and the shot parts were then filtered using Cubic Spline smoothing method. Complete stereotype was divided into five phases. The smoothed coordinates were used to calculate kinematics’ parameters (release parameters, duration of the phases, speed of the shot and changes in speed of the shot in different phases), necessary for comparison with the data of others researchers.

kinematic analyze ; track and field ; throwing movements

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