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Advisor(s)
Abstract(s)
Este trabalho teve como objetivo identificar tendências espácio-temporais entre equipas e grupos de jogadores que discriminam o sucesso defensivo / ofensivo do passe no futebol. Para tal, foram analisados 3 jogos de uma equipa da Premier League Inglesa, registando-se 91 sequências de jogo da equipa em Organização Defensiva. Essas sequências foram divididas de acordo com o sucesso defensivo obtido. Nas situações de sucesso defensivo foi ainda realizada uma divisão das sequências de jogo de acordo com o local em que a ação ocorreu: Zona Intermédia (ZI) ou Zona Defensiva (ZD). As análises foram realizadas em 2 níveis distintos: nível colectivo e nível grupal. O nível de análise coletivo focou-se nas variáveis distância entre centros geométricos, rácio comprimento das equipas e rácio largura das equipas. O nível grupal centrou-se na análise das relações espácio-temporais entre o grupo de jogadores envolvidos, através dos valores das distâncias e dos ângulos interpessoais. Os resultados revelaram a existência de sucesso defensivo, não só quando a equipa defensora conseguiu, em termos coletivos, aumentar o rácio de largura em relação à equipa atacante, mas também, quando nas relações grupais entre os jogadores mais próximos da bola conseguiram uma diminuição das distâncias em relação ao portador da bola, ou ao atacante que recebeu a bola, e entre si. Do mesmo modo, relativamente aos ângulos interpessoais, observou-se uma tendência entre sucesso defensivo e valores de ângulos superiores. Quanto ao local onde os passes ocorreram verificou-se, de um modo geral, uma diminuição nas distâncias entre jogadores, quando os passes ocorreram na ZD em relação à ZI. Os resultados sugerem que a caraterização das tendências espácio-temporais em diferentes dimensões relacionais (coletivas e grupais) permite uma maior compreensão dos comportamentos dos jogadores em campo e deste modo melhorar a intervenção do treinador no decorrer do processo de treino.
In this study we aimed to identify spatial-temporal tendencies between teams and groups of players, which discriminate the defensive performance in football. Three competitive matches from the English Premier League were analyzed, and a total of 91 defensive patterns of play were registered. The sequences were divided according to the defensive success. The sequences registered as defensive success were identified also classified according to the position in the field where the action occurred: Intermediate Zone (ZI) or Defensive Zone (ZD). For the purpose of the analysis, defensive performance was evaluated on two distinct levels: collective and group level. For the collective level were considered the variables: distance between geometric centres of both teams, length and width ratio between teams. Group level focused the analysis on the spatial-temporal relations between the players involved on the defensive process nearest to the ball. For that it was measured the values of interpersonal distances and angles between ball carrier and defenders, both defenders and ball receiver and immediate defender. Results demonstrated that defensive success was constrained at collective level, by an increase on the ratio of width between teams, and in a group level by a reduction of distances between ball carrier and defenders, both defenders and ball receiver and immediate defender. For the interpersonal angles, higher angles between players were related with defensive success in comparison with offensive success. A decrease on interpersonal distance values were also observed when the passes occurred in intermediate zone (ZI) to the defensive zone (ZD). These results suggest that the analysis of spatial-temporal tendencies in different relational dimensions (collective and group) allow a greater understanding of the behaviour of the players on the field and thereby improving the intervention of the coach during the training process.
In this study we aimed to identify spatial-temporal tendencies between teams and groups of players, which discriminate the defensive performance in football. Three competitive matches from the English Premier League were analyzed, and a total of 91 defensive patterns of play were registered. The sequences were divided according to the defensive success. The sequences registered as defensive success were identified also classified according to the position in the field where the action occurred: Intermediate Zone (ZI) or Defensive Zone (ZD). For the purpose of the analysis, defensive performance was evaluated on two distinct levels: collective and group level. For the collective level were considered the variables: distance between geometric centres of both teams, length and width ratio between teams. Group level focused the analysis on the spatial-temporal relations between the players involved on the defensive process nearest to the ball. For that it was measured the values of interpersonal distances and angles between ball carrier and defenders, both defenders and ball receiver and immediate defender. Results demonstrated that defensive success was constrained at collective level, by an increase on the ratio of width between teams, and in a group level by a reduction of distances between ball carrier and defenders, both defenders and ball receiver and immediate defender. For the interpersonal angles, higher angles between players were related with defensive success in comparison with offensive success. A decrease on interpersonal distance values were also observed when the passes occurred in intermediate zone (ZI) to the defensive zone (ZD). These results suggest that the analysis of spatial-temporal tendencies in different relational dimensions (collective and group) allow a greater understanding of the behaviour of the players on the field and thereby improving the intervention of the coach during the training process.
Description
Keywords
Análise de Jogo Organização Defensiva Sucesso Defensivo. Tendências Espácio-Temporais