Popis |
The first aim of this study was to compare the influence of the Age Effect between elite junior male (n = 239) and female (n = 240) tennis players, participant of World Junior Tennis Finals (WJTF) in 2007–2011. The second aim was to compare the influence of the Age Effect between the males (n = 60) and females (n = 60) players in the groups of semifinalists and finalists. The analysis was based on a comparison of the same quarters and same semesters of the year between males and females (Q1 males and Q1 females, Q2 males and Q2 females, etc.). We have used a Shapiro-Wilk test for normality verification and the data was analyzed by the T-Test (modification for percentages) in IBM SPSS software. The results of all players showed, that there were no significant differences between the quarters (-0,37 < 1,96 = tTab 0,05 resp. 2,58 = t Tab 0,01; 0,43 < 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01; -0,83 < 1,96 = tTab 0,05 resp. 2,58 = t Tab 0,01;0,01 < 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01). The second comparison, based on individual semesters also didn´t confirm any statistically significant differences (1,58 < 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01; -1,03 < 1,96 = tTab 0,05 resp. 2,58 = tTab 0,01), neither did the results of semifinalists and finalists (0,2 < 1,96 = tTab0,05 resp. 2,58 = tTab0,01; -0,2 < 1,96 = t Tab0,05 resp. 2,58 = tTab0,01) in individual semesters (no analysis between the quarters was made, because of low number of players in these groups).
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