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Voleibol de praia: a importância de um instrumento de observação e registo
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Abstract(s)
A análise dos Jogos Desportivos Coletivos tem sido alvo de um crescente interesse por parte de investigadores e treinadores, havendo inúmeros trabalhos de investigação realizados neste âmbito, não sendo o Voleibol de Praia (BVB) exceção. Com a urgência de saber mais sobre o BVB, para poder intervir sobre o mesmo, surgiu a necessidade de avaliar e conhecer melhor o jogo e saber se a introdução de novas regras trazem as desejadas mudanças nas durações e ações utilizadas, sendo assim necessário criar um sistema de observação e registo adequado.
Este estudo visa construir e validar um sistema de observação dos grandes domínios do jogo, criando um instrumento que permita conhecer, compreender, observar, codificar e analisar o jogo (Sousa, 2013), testando a sua fiabilidade e, que permita, comparar comportamentos face a diferentes tipos de regras.
Para a realização deste estudo recorremos à Metodologia Observacional e para validar o instrumento “ad hoc” de observação recorreu-se à validação do constructo, por peritagem por um conjunto de 9 experts da modalidade, através da aplicação de um inquérito realizado para o efeito, tendo sido utilizado um valor de corte de 65%.
Após construção e validação do instrumento efetuou-se um estudo experimental com uma amostra de 4 jogos Masculinos do campeonato do Mundo de BVB 2015 na Holanda. Os resultados dos testes de fiabilidade intra e interobservadores do coeficiente Kappa foram superiores a 0,87, e o teste de generalização obteve 99.84% da variância explicada associada à faceta categorias e o índice G (relativo e absoluto) obtido (0,999) demostrando um elevado nível de fiabilidade e de precisão.
Os resultados obtidos permitem-nos afirmar que o instrumento construído para verificar se a introdução das novas regras no BVB trazem ou não as mudanças desejadas pela modalidade, quer nas durações, quer nas ações utilizadas, se mostra adequado para o efeito.
The analysis of the Collective Sports Games has been the object of a growing interest on the part of researchers and coaches, and there has been a great deal of research carried out in this field, and Beach Volleyball (BVB) is not an exception. With the urgency of knowing more about the BVB, in order to intervene on it, the need arose to evaluate and get to know the game better and to know if the introduction of new rules brings the desired changes in the durations and actions used, therefore it was necessary to create a suitable observation and registration system. This study aims to build and validate a system of observation of the great domains of the game, creating an instrument that allows to know, understand, observe, code and analyze the game (Sousa, 2013), testing its reliability and, that allows to compare different types of behaviors against different types of rules. In order to carry out this study, we used the Observational Methodology and to validate the "ad hoc" instrument of observation we used the validation of the construct, by an expert group of 9 modality experts, through the application of a survey carried out for this purpose, having used a cut-off value of 65%. After construction and validation of the instrument, an experimental study was carried out with a sample of 4 men's games of the BVB 2015 World Championship in the Netherlands. The results of the intra and interobservers reliability tests of the Kappa coefficient were higher than 0.87, and the generalization test obtained 99.84% of the explained variance associated to the facet categories and the G index (relative and absolute) obtained (0.999) showing a high level of reliability and accuracy. The results allow us to affirm that the constructed instrument to verify if the introduction of the new rules in the BVB brings or not the desired changes by the modality, either in the durations or in the actions used, is adequate for this purpose.
The analysis of the Collective Sports Games has been the object of a growing interest on the part of researchers and coaches, and there has been a great deal of research carried out in this field, and Beach Volleyball (BVB) is not an exception. With the urgency of knowing more about the BVB, in order to intervene on it, the need arose to evaluate and get to know the game better and to know if the introduction of new rules brings the desired changes in the durations and actions used, therefore it was necessary to create a suitable observation and registration system. This study aims to build and validate a system of observation of the great domains of the game, creating an instrument that allows to know, understand, observe, code and analyze the game (Sousa, 2013), testing its reliability and, that allows to compare different types of behaviors against different types of rules. In order to carry out this study, we used the Observational Methodology and to validate the "ad hoc" instrument of observation we used the validation of the construct, by an expert group of 9 modality experts, through the application of a survey carried out for this purpose, having used a cut-off value of 65%. After construction and validation of the instrument, an experimental study was carried out with a sample of 4 men's games of the BVB 2015 World Championship in the Netherlands. The results of the intra and interobservers reliability tests of the Kappa coefficient were higher than 0.87, and the generalization test obtained 99.84% of the explained variance associated to the facet categories and the G index (relative and absolute) obtained (0.999) showing a high level of reliability and accuracy. The results allow us to affirm that the constructed instrument to verify if the introduction of the new rules in the BVB brings or not the desired changes by the modality, either in the durations or in the actions used, is adequate for this purpose.
Description
Keywords
Metodologia observacional Instrumento de observação Validação Análise de jogo Voleibol de praia Observational methodology Observation tool Validation Game analysis Beach volleyball Atividade Física e Desporto . Faculdade de Ciências Sociais