| Autor: |
PŘIDAL, VLADIMÍR, TOPOROVÁ, KAROLINA, PRIKLEROVÁ, SILVIA |
| Zdroj: |
Journal of Physical Education & Sport; May2021, Vol. 21 Issue 3, p1361-1366, 6p |
| Abstrakt: |
The aim of the study was to find out whether there is a relationship between the serve quality and the subsequent course of the rally in terms of successful or unsuccesfull in the matches of the group phase of the 2019 Women's European Volleyball Championship. 15 matches in which 55 sets were played were analysed. To verify the relationships between variables, and to determine the degree of the dependence the Χ2 independence test and the normative contingency coefficient Cnorm were used. The effect size for Χ2 - test was calculated by means of the coefficient r. The differences in the rally outcome in relation to the serve quality were tested with the test of difference between two relative values. The level of statistical significance was set at 5 %. A significant relationship between the serve quality and the outcome of the rally of the serving team (Χ2 = 66.23; p <0.05), and between the outcome of the rally on own serve and the number of ball crosses over the net (Χ2 = 93.51; p <0.05) were found. There were also significant differences in the serve quality in the winning and losing rallies in each evaluated quality level of the serve (p<0.05). Anyway, the effect size showed a small effect in both investigated relationships, (r = 0.10, resp. 0.30). It turns out that the course of rallies is influenced by several other factors in addition to the serve quality. The results could contribute to a deeper understanding of the structure of the rallies and to the verification of serving strategies in women's top volleyball. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
