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Theses

Analyse du rapport bénéfices/risques et des déterminants de la performance dans les sports collectifs

Abstract : Data has massively invaded the world of high-level sport. Team sports such as football and rugby union, which are among the most publicized sports, are particularly concerned by this phenomenon. In addition, performance in a team sport is multifactorial and multidimensional and are deeply linked to the injuries. Sports scientists seek to understand and contextualize these performances as well as possible. To do so, a lot of data are needed and consumed. Those data are coming from many sources as they are the results of a global thinking between staff members surrounding the athletes. The participation of all the staff, and players, makes sports science answering the call of interdisciplinary research. In this context, biostatistics naturally find their place in direct collaboration with sports scientist, at the interface between data produced and the issues raised by the staff in order to help decision-making.Team sports involve individuals who play as a team. By definition, analyzing these sports requires both individual and collective assessment. It is this double analysis that was carried out during this thesis. The individualization of performance monitoring and health condition of players is clearly essential and it involves the development of statistical tools adapted to the issues raised. Z-score-based methods development for the analysis of biomarkers derived from longitudinal monitoring is an example of the reciprocal contribution that a collaboration between biostatistics and sports science can produce: a better understanding of players' state of health, which is essential for optimizing their performance and minimizing exposure to injury risk factors, and the prospects for optimizing existing statistical tools. The correction of a widely used test, the Mann-Whitney test also finds its place in the will to compare individual performance evolving over time, an issue encountered in detection, selection or rehabilitation protocols.Then, the collective dimension has been investigated. The individualization of the monitoring makes it possible to understand what is happening within each player and to personalize support by the staff. But what about team management? How can managing a group optimize its performance and impact the occurrence of injuries? Through two studies on rugby union, we have shown through the application of adapted statistical tools that the collective dimension of the analysis of the performance was essential to its understanding. Indeed, an optimized group management, favorable to the creation of collective experience, cohesion, and cleverly spreading playing time between the players contributes to better performance. The perspectives raised by these quantitative analyzes of collective experience in a collective sport were discussed. Including the impact on the occurrence of injuries which is a major issue raised by staffs because directly impacting the performance of the group. But the relationship between workforce management and injuries is poorly analyzed.Studies presented in this thesis illustrate some stapes of the necessary exchange between the different disciplines gathered around sports sciences and show how biostatistics fit into the decision-making process of the staffs.
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Guillaume Saulière. Analyse du rapport bénéfices/risques et des déterminants de la performance dans les sports collectifs. Méthodologie [stat.ME]. Université Paris-Saclay, 2018. Français. ⟨NNT : 2018SACLS594⟩. ⟨tel-01990075⟩

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