Throwing velocity is a relevant variable in water polo performance. Few studies have investigated the throw’s speed during an official competition or real game situation in high level competition. All throws performed in 27th European Championship in 2006 (Belgrade, Serbia) and 12th World Championships in 2007 (Melbourne, Australia) were analyzed in the present study. The total sample was composed of 5,691 throws (2,474 in female category). The study was developed with an observational design. A digital video camera, a radar and Polo Análisis Directo v1.0 software were used to record data. The reliability between the observers was verified using the kappa agreement index, ensuring that in all cases this value was greater than .85. The average maximum speed of throws in female water polo was 13.88 m/s (±2.44 m/s) and 16.94 m/s (±3.38 m/s) in male. The variables distance and game situation showed a combined ability to predict 19% of speed differences in female water polo throws and 33% in male.
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机译：投掷速度是水球运动中的一个重要变量。很少有研究调查正式比赛或高水平比赛中真实比赛情况下的掷球速度。在本研究中，分析了2006年第27届欧洲锦标赛（塞尔维亚贝尔格莱德）和2007年第12届世界锦标赛（澳大利亚墨尔本）的所有掷球动作。样本总数为5,691次（女性类别为2,474次）。该研究是通过观察性设计开发的。使用数码摄像机，雷达和PoloAnálisisDirecto v1.0软件记录数据。使用kappa协议索引验证了观察者之间的可靠性，从而确保了在所有情况下该值均大于.85。雌性水球的平均最大投掷速度为13.88 m / s（±2.44 m / s），男性为16.94 m / s（±3.38 m / s）。变量距离和比赛情况显示了组合的能力，可以预测女子水球投掷速度差异的19％，男性水球投掷速度差异的33％。
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