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The Effect of Court Location and Available Time on the Tactical Shot Selection of Elite Squash Players

机译:场馆位置和可用时间对优秀壁球运动员战术投篮选择的影响

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摘要

No previous research in squash has considered the time between shots or the proximity of the ball to a wall, which are two important variables that influence shot outcomes. The aim of this paper was to analyse shot types to determine the extent to which they are played in different court areas and a more detailed analysis to determine whether the time available had an influence on the shot selected. Ten elite matches, contested by fifteen of the world’s top right handed squash players (age 27 ± 3.2, height 1.81 ± 0.06 m, weight 76.3 ± 3.7 kg), at the men’s World Team Championships were processed using the SAGIT/Squash tracking system with shot information manually added to the system. Results suggested that shot responses were dependent upon court location and the time between shots. When these factors were considered repeatable performance existed to the extent that one of two shots was typically played when there was limited time to play the shot (< 1.20s). For example, it was clear that when players did not have a lot of time to hit the ball (low time i.e. < 1.06s, and mid time i.e. 1.06 - 1.20s) in the front left corner close to the side wall, the crosscourt lob was used frequently (44.30% and 36.31% respectively) whereas when there was more time this shot was seldom used (13.64%). Consequently variant and invariant behaviour were shown to exist in elite squash although for the first time it was suggested that the availability of time to play a shot contributed to which of these behaviours was evident. This analysis could be extended by adopting a case study approach to see how individual differences in strategy and tactics affect shot selections.Key points class="unordered" style="list-style-type:disc">Previous research has suggested that a playing strategy, elements decided in advance of the match, may be evident for elite players by examining court location and preceding shot type, however these parameters alone are unlikely to be sufficient predictors.At present there is no known analysis in squash, or indeed in any of the racket sports, that has quantified the time available to respond to different shot types. An understanding of the time interval between shots and the movement characteristics of the player responding to different shots according to the court positions might facilitate a better understanding of the dynamics that determine shot selection.Some elements of a general playing strategy were evident e.g. predominately hitting to the back left of the court, but tactical differences in shot selection were also evident on the basis of court location and time available to play a shot.
机译:之前的壁球研究没有考虑过两次射击之间的时间或球与墙壁的接近程度,这是影响射击结果的两个重要变量。本文的目的是分析镜头类型,以确定它们在不同球场区域的比赛程度,并进行更详细的分析,以确定可用时间是否对所选镜头产生影响。在世界男子团体锦标赛上,由15位世界右手壁球选手(年龄27±3.2,身高1.81±0.06 m,体重76.3±3.7公斤)进行的十场精英比赛使用SAGIT / Squash跟踪系统进行处理,镜头信息手动添加到系统中。结果表明,枪击反应取决于场馆位置和枪击间隔时间。当考虑到这些因素时,存在可重复的性能,以至于在有限的播放时间(<1.20s)中,通常播放两张镜头中的一张。例如,很明显,如果球员没有太多时间在靠近侧壁的左前角击球(低时间,即<1.06s,中部时间,即1.06-1.20s),则为十字球场lob经常使用(分别为44.30%和36.31%),而当有更多时间时,很少使用该镜头(13.64%)。结果表明,在精英壁球中存在变异和不变的行为,尽管这是第一次有人提出,打球的时间的可用性促成这些行为中的哪一个是显而易见的。可以通过采用案例研究的方法来扩展此分析,以查看策略和战术上的个人差异如何影响射击选择。要点 class =“ unordered” style =“ list-style-type:disc”> <!-list -behavior =无序前缀-word = mark-type = disc max-label-size = 0-> 先前的研究表明,比赛策略(比赛前决定的要素)对于精英球员而言可能是显而易见的检查球场位置和先前的击球类型,但是仅靠这些参数不足以作为预测指标。 目前,在壁球或任何球拍运动中尚无已知的分析可以量化时间可用于响应不同的镜头类型。了解击球之间的时间间隔以及球员根据场上位置对不同击球做出反应的运动特征,可能有助于更好地了解决定击球选择的动力。 一般比赛的一些要素策略很明显,例如主要是击中法院的左后方,但根据法院的位置和可用的击球时间,在射门选择上的战术差异也很明显。

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