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In this paper, we present a study of blocker’s activity in university beach volleyball players. A total of n=1166 blocking actions were analyzed from 24 European men's teams 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. Statistical significance of the comparison of systems was calculated using the Z test to compare proportions. Results showed that blockaders do not have a leading role in the Direct Intervention (DI) of the ball (37%, p<0.001). The most blocking actions were Line Blocking (LB) (46.9%), Net Exits (NE) (21.1%) and Diagonal Blocking (DB) (18.1%). When comparing periods of points (F1: 1 to 7, F2: 8 to 14, F3: 15 to 21), statistical differences (p<0.001) where observed between periods F1 and F3 for the most used blocking actions: LB, NE and DB. Finally, similar efficiency values were observed for the most common blocking actions (29.3% for LB and 23.2% for DB). Higher efficiencies can be found in less common defensive actions, such as V Blocking (VB) (31.4%) and Fighting (F) (34.6%). Resumen. En este articulo se presenta un estudio de la actividad del bloqueador en jugadores universitarios de voley playa. Fueron analizados un total de 1166 acciones de bloqueo de 24 equipos europeos masculinos durante el Noveno Campeonato Europeo de Voleibol de Playa EUSA GAMES. El analisis de los videos se llevo a cabo utilizando el programa de software libre LongoMatch v.0.27. La prueba estadistica aplicada para la comparacion de las proporciones fue la prueba Z. Los resultados mostraron que los bloqueadores no realizan una intervencion directa (DI) de la pelota (37%, p <0,001) como accion principal defensiva. Las acciones de bloqueo mas utilizadas fueron Bloqueo en Linea (LB) (46,9%), Salidas de Red (NE) (21,1%) y Bloqueo Diagonal (DB) (18,1%). Cuando se comparan periodos de puntos (F1: 1 a 7, F2: 8 a 14, F3: 15 a 21), se observan diferencias estadisticas (p <0,001) entre los periodos F1 y F3 para las acciones de bloqueo mas utilizadas: LB, NE y DB. Finalmente, se observaron valores de eficiencia similares para las acciones de bloqueo mas comunes (29,3% para LB y 23,2% para DB). Se pueden encontrar mayores eficacias en acciones defensivas menos comunes, como V Bloqueo (VB) (31,4%) y Lucha (F) (34,6%).

retos digital/retos

Blocker’s activity at men’s european beach volleyball university championship (Actividad de los bloqueadores durante el Campeonato de Europa Universitario de vóley playa)