Contribution of component skills to the achievement of the group skills in volleyball games of men's intercollege top team

Abstract

Demura and Naka (1990) reported that team performance in volleyball games could be classified into service and the following four group skills: A. the performance to get points: attacking after reception of attacking from service reception by opponent team (A-2), attacking after reception of attacking from reception by opponent team after A-2 (A-3), B. the performance to get side-outs: attacking after service reception (B-1), attacking after reception of attacking from reception by opponent team after B-1(B-2). In addition, they determined that four group skills consisted of various combinations based on liaison of component skills such as tossing, spiking, blocking and reception. Whether or not any component skill contributed higher to the achievement of group skills has been investigated little. The purpose of this study, therefore, was to determine the degree of contribution of component skills to the achievement of the group skills. As the group skills out of various attacking patterns, we selected attacking performed in liaison with blocking, reception, tossing and spiking in A-2, A-3 and B-2, and attacking performed in liaison with service reception, tossing and spiking in B-1, respectively. This selection has been made because of the fact that the above attacking patterns accounted for the majority of all attacking patterns occured in actual games. The gnmes were observed in the 1988 Spring League of six Intercollegiate Men's volleyball games in Kansai district, 128 sets with each team, and data were collected for in each omponent skill pattern. The analysis of theory of quantification II was used to determine the cntribution of each component skill to the achievement of the group skills. The main results can be summarized as follows: 1) In A-2 and A-3, tossing and spiking skills contribute highly to the achievement of attacking performed in liaison with blocking, reception, tossing and spiking. 2) In B-1, tossing skill has the high contribution to attacking performed in liaison with service reception, tossing and spiking. 3) In B-2, the contribution of reception and tossing skills is high in attacking performed in liaison with blocking, reception, tossing and spiking.