Educação Física

URI permanente para esta coleçãohttps://locus.ufv.br/handle/123456789/187

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    Padrões de coordenação interpessoal no futebol: análise das relações numéricas relativas em sequências ofensivas finalizadas em gol
    (Universidade Federal de Viçosa, 2015-06-30) Santos, Rodrigo de Miranda Monteiro; Costa, Israel Teoldo da; http://lattes.cnpq.br/1954292229391406
    The aim of this dissertation was to verify how the analysis of interpersonal coordination in soccer might contribute to the identification of emergent patterns of play in goal-scoring possessions in open play. The document comprises three scientific papers. The first paper highlights that the study of interpersonal coordination in soccer has recently become an emergent research topic. Several studies that have investigated the different levels of interactions (dyads, sub-groups and teams), which comprise soccer competition, aimed to comprehend how coordination between players and teams arises as well as to identify the emergent patterns from such interactions. Therefore, this leading article aimed: (i) to provide a brief description of the background regarding the main concepts within the topic of coordination; (ii) to highlight the most relevant studies and findings regarding the study of interpersonal coordination in soccer and (iii) to discuss the implications of these studies and findings for representative task design. It is reasonable to suggest that the design of representative tasks in training and testing should rely upon the performances and behaviours observed in actual match contexts. The purpose of the second paper is to present a novel computational tool to analyze inter-team coordination patterns in soccer from video footage. The paper describes the design of low-cost and straightforward manual tracking procedures in comparison with some expensive and highly complex automatic tracking systems currently available. High reliability values suggest that this tool can be employed in a great variety of contexts in soccer and other team sports. The third paper aimed to examine the emergent inter-team coordination tendencies from goal-scoring possessions in open play of the 2014 FIFA ® World Cup winner team, through the analysis of teams' numerical relations within the effective play-space (EP-S). We assume that Germany generate more numerical uncertainty in sub-areas of play closer to opponents' goal in goal- scoring possessions. We analysed 6457 frames from 11 video sequences of goal- scoring possessions in open play during that tournament. Teams' numerical relations within sub-areas of play were examined in each offensive sequence through Shannon's entropy, H. The uncertainty of numerical relationships between the teams across sub-areas was also calculated. Entropy measures indicated that the uncertainty of teams' numerical relations was higher within the German Central Offensive (opponents' Central Defensive) sub-area (1.86 bits) in comparison with the remaining sub-areas of play. These results confirm our initial hypothesis, displaying that, in goal-scoring possessions, the German team generates more numerical uncertainty in critical offensive sub-areas of play. Future research should verify whether such pattern is a predominant feature in successful teams.