The purpose of this study was to identify the effect of rule changes in paralympic sport Goalball by using semiautomatic software tools. Goalball is one of the paralympic disciplines designed for visually impaired athletes. Two teams, each consisting of three players try to score goals by rolling the ball into the oppositions' net. All players wear additional blindfolds to guarantee that players are equally impaired. The ball contains bells allowing players to echolocate its movement. Goalball-specific software was developed for performance analysis ("GoalScout", "GoalView" and "GoalTrack"). For practical and intuitive scouting purposes the software runs on tablet PCs. Additionally, positional data extracted from video sequences provides precise information. Goal-Track accurately measures the speed of the ball. Bowling patterns were characterized for all teams and players. Significant changes concerning bowls per game in women games were identified (n = 66; p < .05). No significant changes were found in men games (n = 77). Regarding goals per games, neither in men (n = 77) nor in women (n= 66) significant differences were found. Significant scoring sectors were identified (Sector 3 and 7; x2 = 7.50, p . .005). A correlation between ball speed and success rate is, especially in women games, statistically significant (Men: r = .65; Women: r = .90).
© Copyright 2016 Proceedings of the 2016 International Association of Computer Science in Sport (IACSS) Conference. Julkaistu Tekijä FEF/UNICAMP. Kaikki oikeudet pidätetään. / Kääntänyt https://www.DeepL.com/Translator