Interpersonal Distance Regulates Functional Grouping Tendencies of Agents in Team Sports

Passos, Pedro; Milho, João; Fonseca, Sofia; Borges, João Paulo Assunção; Araújo, Duarte; Davids, Keith

doi:10.1080/00222895.2011.552078

Cited by 78 publications

(54 citation statements)

References 14 publications

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“…Such variability was studied from a spatio-temporal point-of-view, by understanding the main factors and constraints that affect players' actions [7]. In spite of the regular dynamics of a football game [8], and considering the tactical behavior of players, the variability of players' trajectories can be seen as an interesting indicator in characterising football players within their specific tactical zones.…”

Section: Introductionmentioning

confidence: 99%

Dynamical Stability and Predictability of Football Players: The Study of One Match

Couceiro

Clemente

Martins

et al. 2014

Entropy

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Abstract:The game of football demands new computational approaches to measure individual and collective performance. Understanding the phenomena involved in the game may foster the identification of strengths and weaknesses, not only of each player, but also of the whole team. The development of assertive quantitative methodologies constitutes a key element in sports training. In football, the predictability and stability inherent in the motion of a given player may be seen as one of the most important concepts to fully characterise the variability of the whole team. This paper characterises the predictability and stability levels of players during an official football match. A Fractional Calculus (FC) approach to define a player's trajectory. By applying FC, one can benefit from newly OPEN ACCESSEntropy 2014, 16 646 considered modeling perspectives, such as the fractional coefficient, to estimate a player's predictability and stability. This paper also formulates the concept of attraction domain, related to the tactical region of each player, inspired by stability theory principles. To compare the variability inherent in the player's process variables (e.g., distance covered) and to assess his predictability and stability, entropy measures are considered. Experimental results suggest that the most predictable player is the goalkeeper while, conversely, the most unpredictable players are the midfielders. We also conclude that, despite his predictability, the goalkeeper is the most unstable player, while lateral defenders are the most stable during the match.

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Section: Introductionmentioning

confidence: 99%

Dynamical Stability and Predictability of Football Players: The Study of One Match

Couceiro

Clemente

Martins

et al. 2014

Entropy

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“…This dynamics results from the interpersonal interaction amongst team members [2], who cooperate to create scoring opportunities and to prevent the opponent to score [1]. Some studies have found that successful passing is a key determinant in soccer performance and the ability of teams to retain ball possession is strongly correlated to success [3].…”

Section: Introductionmentioning

confidence: 99%

Comparison of network processes between successful and unsuccessful offensive sequences in elite soccer

Peixoto¹,

Praça²,

Bredt³

et al. 2017

Human Movement

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Purpose. The study aimed to compare social network analysis (SNA) general measures and centrality levels of successful and unsuccessful offensive sequences performed by elite national teams in 64 matches of the FIFA World Cup 2014 tournament and to compare the level of centrality between playing positions. Methods. Adjacency matrices of passing sequences within an offensive unit were built and treated in a dedicated SNA software.Results. The main results indicated significantly lower values of total links and network density in successful sequences in comparison with unsuccessful ones in the teams that achieved the round of 8, semifinals, and the final. The comparisons between playing positions revealed that forwards showed the highest values of indegree centrality (balls received) and that midfielders presented the highest values of outdegree centrality (ball passed) in both successful and unsuccessful offensive units. Midfielders also exhibited the highest values of betweenness centrality (intermediation between teammates) in unsuccessful sequences and forwards in successful ones. Conclusions. Greater cooperation among teammates may not be determinant for successful sequences.

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“…Studies of order-controlorder-control parameter interactions have identified how and why behaviours emerge in competing dyadic systems [41]. Past research has demonstrated that control parameters of interpersonal distance and relative velocity regulate a performer's actionsactions, leading to different performance outcomes [42]. For example, in rugby unionunion, results revealed specific threshold values for interpersonal distance of less than 4 m4 m, coupled with an inter-personal velocity of at least 1 m • s1 mÁs -1 , at which an attacker passes a defender [41].…”

Section: Ecological Dynamicsmentioning

confidence: 99%

“…Past studies have demonstrated that patterns of movement coordination emerge through the self-organised, spatial-temporalspatial-temporal interactions of players under specific task and environmental constraints [40][41][42]. In dynamical systems theory, self-organisation is a principle used to explain how order spontaneously emerges among different system components (e.g.…”

Section: Ecological Dynamicsmentioning

confidence: 99%

Emergence of Contact Injuries in Invasion Team Sports: An Ecological Dynamics Rationale

et al. 2014

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The incidence of contact injuries in team sports is considerableconsiderable, and to adopt preventive measures, injury mechanisms need to be comprehensively understood.understood to facilitate the adoption of preventive measures. In Association Football, evidence shows that the highest prevalence of contact injuries emerges in 1 vs. 1one-on-one interactions. However, previous studies have tended to operationally report injury mechanisms in isolation, failing to provide a theoretical rationale to explain how injuries might emerge from interactions between opposing players. In this position paperpaper, we propose an ecological dynamics framework to enhance current understanding of behavioural processes leading to contact injuries in team sports. Based on previous research highlighting the dynamics of performer-environmentperformer-environment interactions, contact injuries are proposed to emerge from symmetry-breaking processes during on-field interpersonal interactions among competing players and the ball. Central to this approach is consideration of candidate control parameters that may provide insights on the information sources used by players to reduce risk of contact injuries during performance. Clinically, an ecological dynamics analysis could allow sport practitioners to design training sessions,sessions based on selected parameter threshold values as primarilyprimary and/or secondary preventing measures,measures during training and rehabilitation sessions. Key points:• Key Points An ecological dynamics approach proposes how information constrains coordination tendencies between competing/cooperating players and the ball leading to changes in contact injury risks.Future research needs to consider which information sources a performer needs to become perceptually attuned to as affordances (possibilities for action) to decrease injury risks.Based on identified control parameter threshold values, training and rehabilitation sessions can be designed to encapsulate specific affordances which players may learn to become attuned to in order to prevent entering high-risk injury situations.

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Interpersonal Distance Regulates Functional Grouping Tendencies of Agents in Team Sports

Cited by 78 publications

References 14 publications

Dynamical Stability and Predictability of Football Players: The Study of One Match

Dynamical Stability and Predictability of Football Players: The Study of One Match

Comparison of network processes between successful and unsuccessful offensive sequences in elite soccer

Emergence of Contact Injuries in Invasion Team Sports: An Ecological Dynamics Rationale

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