期刊名称：Facta Universitatis : Series Physical Education and Sport
印刷版ISSN：1451-740X
出版年度：2007
卷号：5
期号：02
页码：109-120
出版社：University of Niš
摘要：The research included 173 water-polo players aged 12 to 20, who were members of different water-polo clubs as representatives at the 1st national league level, and 187 players aged 11 to 20 who were members of different national water-polo selections from Serbia. The maximum time of swimming at a distance of 25 m was measured for every player whereby swimming meant using three different crawl techniques: 25m with the head under water - the basic technical skill level, 25m with the head above water - the directed skill level and 25m while leading the ball - the specific skill level. The results showed that there was a general, statistically significant difference among the given swimming tests and among the monitored samples in relation to the competitive level (Wilks’ Lambda – 0.789, F = 31.11, p = 0.000), in relation to the age of the groups (Wilks’ Lambda – 0.270, F = 49.12, p = 0.000) as well as in relation to the competitor category in the function of age groups (Wilks’ Lambda – 0.920, F = 2.45, p = 0.004). By applying mathematical modeling by means of the method of smallest square numbers - the second-degree polynomial, models are defined which describe the regularity of the changes in the intensity of swimming at a distance of 25m from the aspect of the different crawl techniques regarding age and the competitive level.
关键词：water polo, water polo crawl, training process control
