In targeted throwing tasks, performance can be improved by three different factors: "Noise Reduction", "Tolerance" and "Covariation" (Müller 2001). How are these factors related to the variability profile of the trajectory over repeated trials? Exemplary data from an experiment using a virtual dart throwing task show that movement trajectories chosen by the participants render a functional variability profile. The variability of both relevant parameters, i.e. angle and velocity is reduced during the time window in which the projectile is released. This specific profile is preserved while the amount of variability is further decreased with practice.
© Copyright 2003 Messplätze, Messplatztraining, motorisches Lernen: ausgewählte Beiträge; 5. gemeinsames Symposium der dvs-Sektionen Biomechanik, Sportmotorik und Trainingswissenschaft; Universität Leipzig, Sportwissenschaftliche Fakultät, 19. bis 21. September 2002 / Veranst.: Sportwissenschaftliche Fakultät der Universität Leipzig .... Veröffentlicht von Academia. Alle Rechte vorbehalten.