Browsing by Subject "Análise do rendimento"

Now showing 1 - 3 of 3
  • Thumbnail Image
    Publication
    Open Access
    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
  • Thumbnail Image
    Publication
    Open Access
    Comparación de las variables de rendimiento en las principales ligas europeas de hockey sobre patines
    (Universidad de Murcia. Servicio de Publicaciones, 2023) Trabal Tañà, Guillem; Peña, Javier; Moreno-Galcerán, Daniel; Merino, Jordi; Buscà, Bernat; Arboix Alió, Jordi
    El presente estudio tuvo como objetivo comparar las variables de rendimiento del hockey patines en los campeonatos nacionales de la máxima categoría masculina en España (OK Liga), Portugal (Primeira Divisao) e Italia (Serie A1). Se analizaron un total de 1.665 partidos disputados entre las temporadas 2018-2019 y 2020-2021, correspondientes a la OK Liga (654), Primeira Divisao (497) y la Serie A1 (514). Se realizaron comparaciones utilizando el análisis de varianza (ANOVA) con post hoc de Bonferroni y la prueba t-Student para comparar las variables según la localización del partido. Los resultados muestran que en España se marcan menos goles por partido, que en Italia se marcan más goles por partido y que en Portugal hay más ejecuciones y goles de penalti y de falta directa, mayor cantidad de faltas y de tarjetas y un mayor porcentaje de goles de pelota parada respecto a los goles totales. En los tres campeonatos las variables de rendimiento asociadas a la victoria fueron favorables a los equipos locales. La comparación de los campeonatos puede permitir a los entrenadores tener un mejor conocimiento de las variables de rendimiento de cada competición y ayudar a las federaciones a conocer que competiciones están mejor asociadas con las variables determinantes del espectáculo deportivo, especialmente los goles, para diseñar propuestas de mejoras en los campeonatos pertinentes
  • Thumbnail Image
    Publication
    Open Access
    Short-term effects of adding 1-m wide to each side of the basketball court on youth players’ performance
    (Murcia: Servicio de publicaciones de la Universidad de Murcia, 2020) Mateus, Nuno; Gonçalves, Bruno; Exel, Juliana; Esteves, Pedro; Sampaio, Jaime
    This study aimed to identify short-term effects on basketball players’ physical responses, technical performance, and tactical behaviour when the court dimension is increased 1-m wide to each side. Fourteen youth players participated in 5 vs. 5 simulated basketball games, under two different conditions: regular court (28x15m) and wider court (28x17m, 1-m wider for each side). Besides the assessment of physical and technical indicators, positional data were also used to compute the following variables: distance to the nearest opponent, distance to the nearest teammate, stretch-index and distance between centroids. Results indicated that in the wider court condition, the dispersion of player’s displacement trajectories duringthe offensive phase increased, which had slight repercussions on their physical responses and in the teams’ playing patterns. Conversely, during the defensive phase, players tended to move within the regular spatial references, regardless of court width manipulation. Overall, this study emphasizes that short-term effects of changing the court dimensions are relatively negligible, suggesting that informational constraints might require longer time-scales to yield robust changes in players’ performance.