Moniz Felipe, Scaglia Alcides, Sarmento Hugo, García-Calvo Tomás, Teoldo Israel
Department of Physical Education, Centre of Research and Studies in Soccer, Universidade Federal de Viçosa, Viçosa, Brazil.
School of Applied Sciences, Universidade Estadual de Campinas, Campinas, Brazil.
J Hum Kinet. 2020 Jan 31;71:167-177. doi: 10.2478/hukin-2019-0080. eCollection 2020 Jan.
The aim of this study was to verify the effect of an inside floater on soccer players' tactical behaviour in small-sided and conditioned games (SSCGs). The sample comprised 54 Brazilian top-level academy players. The instrument used to assess players' tactical behaviour was the System of Tactical Assessment in Soccer (FUT-SAT). Tactical behaviour was analysed through the number of tactical actions and the percentage of correct actions regarding the core tactical principles of soccer. Repeated measures test was used to compare tactical behaviour between games (SSCGs) with and without an inside floater. Pearson's r was used to verify the effect size of the inside floater on tactical behaviour. As for tactical actions, SSCGs with an inside floater displayed significantly lower means for the tactical principles of penetration (2.76 ± 1.63; p < .001), delay (6.11 ± 2.68; p < .018), defensive coverage (1.64 ± 1.14; p < .001) and significantly higher means for the tactical principle of defensive unity (14.98 ± 4.57; p < .032). With respect to the percentage of correct actions, SSCGs with an inside floater displayed significantly lower means for all tactical principles, except for offensive coverage (90.5 ± 18.48; p < 1.000). It was concluded that the inside floater allowed players to modify their behaviour in such a way that they adapted to the constraints imposed by the presence of an inside floater. Furthermore, the inside floater provided more difficulty for players, and thus may be considered an important task constraint to be added in SSCGs.
本研究的目的是验证内游动者对小场地条件比赛（SSCGs）中足球运动员战术行为的影响。样本包括54名巴西顶级青训球员。用于评估球员战术行为的工具是足球战术评估系统（FUT-SAT）。通过战术行动的数量以及与足球核心战术原则相关的正确行动百分比来分析战术行为。采用重复测量检验来比较有和没有内游动者的比赛（SSCGs）之间的战术行为。使用皮尔逊相关系数r来验证内游动者对战术行为的效应大小。至于战术行动，有内游动者的SSCGs在渗透（2.76±1.63；p<.001）、拖延（6.11±2.68；p<.018）、防守覆盖（1.64±1.14；p<.001）等战术原则方面的均值显著更低，而在防守整体性（14.98±4.57；p<.032）战术原则方面的均值显著更高。关于正确行动的百分比，有内游动者的SSCGs在所有战术原则方面的均值显著更低，进攻覆盖除外（90.5±18.48；p<1.000）。得出的结论是，内游动者使球员能够改变他们的行为，从而适应内游动者存在所带来的限制。此外，内游动者给球员带来了更多困难，因此可被视为在SSCGs中增加的一项重要任务限制因素。
