Diseño y validación de una herramienta de observación para porteros en balonmano playa

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Abstract

RESUMEN Los objetivos de esta investigación fueron crear un instrumento de observación para analizar las acciones del portero en balonmano playa y determinar la fiabilidad de los observadores, valorando la bondad de las categorías y estimando el número mínimo de sesiones necesarias para generalizar con precisión. La herramienta ha sido diseñada ad hoc mediante un sistema mixto de formato de campo y sistema de categorías, exhaustivas y mutuamente excluyentes (E/ME). Está constituida por 11 criterios y 85 categorías. Los resultados han mostrado índices adecuados de correlación (≤ 0,936) y Kappa de Cohen (≤ 0,906). Los resultados obtenidos en el análisis de Generalizabilidad son también excelentes, resultando unos coeficientes G relativo y G absoluto de 0,985, en el acuerdo interobservador, y de 0,998, para el acuerdo intraobservador. En conjunto, los resultados presentados en este trabajo ponen de relieve una elevada validez, precisión y fiabilidad de las observaciones efectuadas con la herramienta analizada.

Translated abstract

RESUMO Os objectivos deste trabalho foram a criação de um instrumento de observação para analisar as acções do guarda redes de andebol de praia e determinar a fiabilidade dos observadores, valorizando a bondade das categorias e estimar o número mínimo de sessões necessárias para generalizar com precisão. A ferramenta foi desenhada com base ad hoc mediante um sistema misto de formato de campo e sistema de categorias, exaustivas e mutuamente exclusivas (E/ME). Ela é composta por 11 critérios e 85 categorias. Os resultados obtidos demonstram índices adequados de relação (≤ 0,936) e Kappa de Cohen (≤ 0,906). Os resultados obtidos na análise da generalização são excelentes também, resultando coeficientes G relativo e G absoluto de 0,985, no acordo interobservador, e de 0,998 para o acordo inter-observador. De maneira geral, os resultados apresentados neste trabalho revelam uma alta validade, precisão e fiabilidade das observações efectuadas com esta ferramente analizada.

Translated abstract

ABSTRACT The objectives of this research were to create an instrument of observation to analyze the actions of the goalkeeper in handball beach and determine the reliability of the observers, assessing the goodness of the categories and estimating the minimum number of sessions necessary to generalize with precision. The tool ad hoc has been designed using a mixed system of field format and a system of categories, exhaustive and mutually exclusive (E / ME). It is made up of 11 criteria and 85 categories. The results have shown adequate correlation rates (≤ 0,936) and Cohen's Kappa (≤ 0,906). The results obtained in the Generalizability analysis are also excellent, resulting in relative G coefficients and absolute G of 0,985, in the interobserver agreement, and 0.998, for the intraobserver agreement. Overall, the results presented in this work highlight the high validity, accuracy and reliability of the observations made with the tool analyzed.

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Influence of opposition team formation on physical and skill-related performance in a professional soccer team

Christopher Carling (2011)

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Domain-Specific and Unspecific Reaction Times in Experienced Team Handball Goalkeepers and Novices

Fabian Helm, Mathias Reiser, Jörn Munzert (2016)

In our everyday environments, we are constantly having to adapt our behavior to changing conditions. Hence, processing information is a fundamental cognitive activity, especially the linking together of perceptual and action processes. In this context, expertise research in the sport domain has concentrated on arguing that superior processing performance is driven by an advantage to be found in anticipatory processes (see Williams et al., 2011, for a review). This has resulted in less attention being paid to the benefits coming from basic internal perceptual-motor processing. In general, research on reaction time (RT) indicates that practicing a RT task leads to an increase in processing speed (Mowbray and Rhoades, 1959; Rabbitt and Banerji, 1989). Against this background, the present study examined whether the speed of internal processing is dependent on or independent from domain-specific motor expertise in unpredictable stimulus–response tasks and in a double stimulus–response paradigm. Thirty male participants (15 team handball goalkeepers and 15 novices) performed domain-unspecific simple or choice stimulus–response (CSR) tasks as well as CSR tasks that were domain-specific only for goalkeepers. As expected, results showed significantly faster RTs for goalkeepers on domain-specific tasks, whereas novices’ RTs were more frequently excessively long. However, differences between groups in the double stimulus-response paradigm were not significant. It is concluded that the reported expertise advantage might be due to recalling stored perceptual-motor representations for the domain-specific tasks, implying that experience with (practice of) a motor task explicitly enhances the internal processing of other related domain-specific tasks.