Defensive systems during the Men’s European University Beach Volleyball Championship

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Títol: Defensive systems during the Men’s European University Beach Volleyball Championship
Autors: Jimenez-Olmedo, Jose Manuel | Pueo, Basilio | Penichet-Tomás, Alfonso
Grups d'investigació o GITE: Grupo de Investigación en Ciencias de la Actividad Física y el Deporte (GICAFD)
Centre, Departament o Servei: Universidad de Alicante. Departamento de Didáctica General y Didácticas Específicas
Paraules clau: Beach volley | Training | Beach sports | University sport | Block | Blockers
Àrees de coneixement: Didáctica de la Expresión Corporal | Educación Física y Deportiva
Data de publicació: 26-de setembre-2016
Editor: University of Piteşti, Romania
Citació bibliogràfica: Journal of Physical Education and Sport (JPES). 2016, 16(3), Art 149: 945-950. doi:10.7752/jpes.2016.03149
Resum: The analysis of performance in beach volleyball should consider the development of the set or game systems in connection with successful completion. In this paper, we present a study of defensive system in university beach volleyball players in order to determine the evolution throughout the set and effectiveness in relation to the performance factors of the game. A total of n=937 blocking actions were analyzed by means of video recordings from 24 European men's teams from 16 different nationalities at the Ninth European Beach Volleyball Championship EUSA GAMES. The analysis of the videos was carried out using the free software program LongoMatch v.0.27 by an experienced observer. Reliability performed on the intra-observer analysis showed a margin of error lower than 5%. Both effectiveness of the game systems and frequency of winning and not winning points were annotated for each period of points. Statistical significance of the comparison of systems was calculated using the Z test to compare proportions. Results showed that the most widely used game system was 2:1 with 67.2% (n=630) with statistically significance (p<0.001). Regarding effectiveness, system 2:1 presented an efficiency of success of 30.8% (n=194), whereas system 1:2 presented a moderately low value of 25.7% (n=79). When comparing periods of points (F1:1 to 7, F2: 8 to 14, F3: 15 to 21), system 2:1 showed higher effectiveness than 1:2 for the last two periods F2 and F3. Finally, a decrease in unscored point actions was observed in both systems between periods F1 to F3 (59.63% for 1:2 and 45.35% for 2:1).
ISSN: 2247-8051 (Print) | 2247-806X (Online)
DOI: 10.7752/jpes.2016.03149
Idioma: eng
Tipus: info:eu-repo/semantics/article
Drets: This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0
Revisió científica: si
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