Department of Sport Sciences, University of Beira Interior, Convento de S. António, Covilhã 6200-001, Portugal.
J Sports Sci. 2012;30(13):1447-54. doi: 10.1080/02640414.2012.712716. Epub 2012 Aug 8.
This study investigated effects of manipulating the number of action possibilities in a futsal passing task to understand the representativeness of practice tasks designs. Eight male senior futsal players performed a passing task in which uncertainty on passing direction for the player in possession of the ball was increased in four conditions and compared with passing data from a competitive match. Performance during a passing task and competitive futsal performance was compared using ball speed and passing accuracy data. Ball speed data were analysed by approximate entropy (ApEn) to capture their regularity in each of the four conditions and during competitive performance. Significantly high levels of regularity were observed in predetermined passes in comparison with emergent passes (i.e., passes with high number of possibilities for action). Similar results for ball speed regularity were observed between practice tasks with a high number of possibilities for action (i.e., emergent passes) and competitive performance. Similar results were observed for passing accuracy in practice tasks with a high number of possibilities for action compared to competitive performance. Increases in the number of action possibilities during practice improved action fidelity of tasks in relation to competitive performance.
本研究通过操控五人制足球传球任务中动作可能性的数量，来研究练习任务设计的代表性。8 名男性高级五人制足球运动员进行了传球任务，在四个条件下增加了持球球员传球方向的不确定性，并与比赛中的传球数据进行了比较。使用球速和传球准确性数据比较传球任务期间和竞技五人制比赛中的表现。通过近似熵（ApEn）分析球速数据，以捕捉每个条件和竞技表现中的规律性。与突发传球（即具有高动作可能性的传球）相比，预定传球的规律性显著较高。在具有高动作可能性的练习任务（即突发传球）和竞技表现之间观察到了相似的球速规律性结果。与竞技表现相比，具有高动作可能性的练习任务中的传球准确性也观察到了相似的结果。在练习过程中增加动作可能性的数量提高了任务与竞技表现的动作保真度。
