SHORT-TIME MEASURE OF RELEASE VELOCITY AND RELEASE ANGLE OF TRAC AND FIELD THROWING DISCIPLINES

Abstract

In the throwing disciplines of track and field sports disciplines the release velocity and the release angle are crucial factors of the throwing distance. Based on a typical three dimensional video measuring unit a method has been developed to provide these parameters within short-time as feedback information during training. With a newly developed mix-unit two synchronous video signals are composed to one signal with a shift of one half frame. Data acquisition (including live-capturing) and processing of release parameters during the final phase of the throw are realized with a specific analysis program. Feedback information can be presented within ten to twenty seconds after the throw.