As ações de jogo que determinam o desfecho final dos jogos de voleibol de alto nível: estudo efetuado em seleções seniores de voleibol masculinas na Liga Mundial 2011
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2014-09-16
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A análise do jogo assume um papel preponderante para que os treinadores desempenhem de forma mais profícua a sua função na direção e condução do treino e da competição. Pretende-se assim, com este estudo determinar quais destas ações, terminais ou não terminais, são mais influenciadoras no desfecho final dos jogos de voleibol em equipas de alto nível.
A amostra deste estudo foi retirada de dois grupos da Liga Mundial 2011 de Seniores masculinos, Grupo C, Portugal, Finlândia, Argentina e Sérvia e o grupo B, Rússia, Bulgária, Alemanha e Japão, composta por n=24 jogos. O registo e análise dos dados foi efetuado pelo software Data Volley. Recorreu-se à análise da função discriminante (AD) com o intuito de identificar os indicadores que mais contribuem para estabelecer a diferença máxima entre as vitórias e as derrotas. Considerámos como relevantes para a interpretação dos compósitos lineares os |CCE| ≥ 0,30 (Tabachnick & Fidell, 1996). O nível de significância ficou estabelecido em 5%. O cálculo dos resultados foi efetuado pelo software SPSS versão 17.0. Em relação aos resultados, apenas a variável receção excelente apresenta diferenças significativas. As variáveis que mais contribuíram para a discriminação entre a derrota e a vitória foram, ataque erro (CCE=-0,66), o serviço erro (CCE=-0,45), serviço excelente (CCE=0,42), adversário erro (CCE=0,38) e ainda receção excelente (CCE=0,36). As variáveis serviço excelente, receção excelente e erros do adversário parecem estar associadas à vitória. As variáveis, ataque erro e serviço erro, poderão estar associadas à derrota.
Em virtude das equipas de Voleibol de alto nível serem muito equilibradas e pelos resultados obtidos no presente estudo, verificou-se ser mais importante não errar, do que pontuar.
The game analysis assumes a leading role so that coaches play a more fruitful part in the direction and conduct of training and competition. It is thus intended with this study to determine which of these actions, terminals or non terminals, are more influential in the final outcome of the volleyball games in high level teams. This study sample was drawn from two groups of the World League of 2011 Senior Men teams, Group C, Portugal, Finland, Argentina and Serbia and Group B, Russia, Bulgaria, Germany and Japan, composed by n = 24 games. The recording and analysis of the data was performed by the software Data Volley. The discriminating function analysis (AD) was used in order to identify indicators that contribute most to establish the maximum difference between wins and losses. We considered as relevant to the interpretation of the linear composites | CCE | ≥ 0.30 (Tabachnick & Fidell, 1996). The significance level was set at 5%. The results calculation was performed by the SPSS software version 17.0. Regarding the results, only the variable excellent reception differ significantly. The variables that contributed most to the discrimination between defeat and victory were: attack error (CCE = -0.66), the service error (CCE = -0.45), excellent service (CCE = 0.42), opponent error (CCE = 0.38) and also excellent reception (CCE = 0.36). The excellent service, excellent reception and opponent's errors variables seem to be associated to victory. The variables, attack error and service error, may be associated with defeat. Since the high level Volleyball teams are very and balanced and with the results obtained in this study, it was concluded to be more important not to miss than to score.
The game analysis assumes a leading role so that coaches play a more fruitful part in the direction and conduct of training and competition. It is thus intended with this study to determine which of these actions, terminals or non terminals, are more influential in the final outcome of the volleyball games in high level teams. This study sample was drawn from two groups of the World League of 2011 Senior Men teams, Group C, Portugal, Finland, Argentina and Serbia and Group B, Russia, Bulgaria, Germany and Japan, composed by n = 24 games. The recording and analysis of the data was performed by the software Data Volley. The discriminating function analysis (AD) was used in order to identify indicators that contribute most to establish the maximum difference between wins and losses. We considered as relevant to the interpretation of the linear composites | CCE | ≥ 0.30 (Tabachnick & Fidell, 1996). The significance level was set at 5%. The results calculation was performed by the SPSS software version 17.0. Regarding the results, only the variable excellent reception differ significantly. The variables that contributed most to the discrimination between defeat and victory were: attack error (CCE = -0.66), the service error (CCE = -0.45), excellent service (CCE = 0.42), opponent error (CCE = 0.38) and also excellent reception (CCE = 0.36). The excellent service, excellent reception and opponent's errors variables seem to be associated to victory. The variables, attack error and service error, may be associated with defeat. Since the high level Volleyball teams are very and balanced and with the results obtained in this study, it was concluded to be more important not to miss than to score.
Descrição
Dissertação de Mestrado em Ciências do Desporto, Especialização em Jogos Desportivos Colectivos
Palavras-chave
Voleibol , Análise do jogo , Estatísticas do jogo , Ações terminais , Ações não terminais