Browsing by Subject "Futebol de elite"

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    Análisis observacional de las acciones con balón de los delanteros centro en la UEFA euro 2020
    (Universidad de Murcia : servicio de publicaciones, 2026) Fernández-Sante, Daniel; Iván-Baragaño, Iyán; Maneiro, Rubén; Ardá, Antonio; Sin departamento asociado
    The objectives of this study were to analyze the offensive ball actions performed by center forwards in UEFA EURO 2020, to understand the relationship among various analyzed technical–tactical criteria and categories -including spatial, interactional, and intentional criteria-and the result of the action, and to establish a predictive model of the action results. To do so, 599 UEFA EURO offensive forwards actions were analyzed using observational methodology by means of an ad hoc observation instrument composed of 4 dimensions, 14 criteria and 129 categories, with an inter-observer reliability of κ = 0.842. Three types of analysis were carried out: a descriptive analysis by counting absolute and relative frequencies, a bivariate analysis using contingency tables between the criteria included in the observation instrument and the action result, and finally a predictive model based on binary logistic regression. The results obtained showed that the criteria modifying the result of the forwards' actions were: Area where the ball comes from (χ²= 140.3; p< .001; ES=.342), Area where the action takes place(χ²= 148.7; p< .001; ES=.352), Initial interaction context(χ²= 57.7; p< .001; ES=.219), Previous action(χ²= 78.2; p< .001; ES=.256), First-contact surface(χ²= 20.5; p= .002; ES=.131), Field area where the ball goes(χ²= 498;p< .001; ES=.645), Tactical intention(χ²= 73.9; p< .001; ES=.351), Action performed(χ²= 557.9; p< .001; ES=.682), and Final interaction context(χ²= 348.2; p< .001; ES=.539). From the multivariate approach, the logistic regression model has shown a predictive capacity of 80% when it came to predicting the ability of center forwards to maintain ball possession. The significant predictor variables were the Initial interaction context, the Tactical intention and theAction performed. These results can be useful when preparing and training for the specific position of the center forward as well as increasing their performanc
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    How elite-level soccer dynamics has evolved over the last three decades? Input from generalizability theory
    (Murcia: Servicio de Publicaciones de la Universidad de Murcia, 2015) Barreira, Daniel; Garganta, Júlio; Castellano, Julen; Machado, João; Anguera Argilaga, María Teresa
    Soccer dynamics have evolved in response to environmental factors such as match status, type of competition, and competition stage. Observational analysis has shed light into the behavior of players, but few researchers have looked at the complexity of the interactions between players and their teams over time. Here we investigated the variables in;uencing the patterns of play and the evolution of tactical and technical behaviors through the last three decades. A retrospective inferential study was applied. SoccerEye observational instrument and recording software were used to observe and record 45 matches and 6791 attacks from European and World Cup semi-