Green Andrew, Dafkin Chloe, Kerr Samantha, McKinon Warrick
a Biomechanics Laboratory, School of Physiology, Faculty of Health Sciences , University of the Witwatersrand , Johannesburg , South Africa.
Eur J Sport Sci. 2017 Sep;17(8):994-1003. doi: 10.1080/17461391.2017.1343387. Epub 2017 Jul 4.
Scrummaging is a major component of Rugby Union gameplay. Successful scrummaging is dependent on the coordination of the forward players and the strength of the eight individuals. The study aim was to determine whether individual scrummaging kinetics and other candidate factors associated with scrummaging performance discriminate team scrum performances. Sixteen club-level forwards (stature: 1.80 ± 0.1 m; mass: 99.0 ± 18.2 kg) were initially divided into two scrummaging packs. A total of 10 various scrum permutations were tested, where players were randomly swapped between the two packs. Winning scrums were determined by two observers on opposite sides of the scrum. Fatigue (100 mm visual analogue scale (VAS)) and scrummaging effort (6-20 rating of perceived exertion (RPE)) were assessed following each scrum contest. Individual scrummaging kinetics were acquired through an instrumented scrum ergometer and muscular power indicated through vertical jump heights. Student's t-tests were used to differentiate between winning and losing scrum packs. VAS and RPE were assessed using repeated measures ANOVAs. Winning scrum packs had significantly larger combined force magnitudes (p < .002), regardless of the player contribution calculations. Additionally, winning packs had less individual movement (p = .033) and higher combined vertical jump heights (p < .001) but were not significantly heavier (p = .759) than losing scrum packs. While perceived VAS and RPE values progressively increased (p < .001), no differences in the individual scrum magnitudes were observed between the 1st and 10th scrum (p = .418). The results indicated that the combination of individual forces, variation in movement and factors related to scrummaging performance, such as vertical jump height, were associated with team scrummaging success.
争球是英式橄榄球联盟比赛的一个主要组成部分。成功的争球取决于前锋球员之间的协作以及八名球员的力量。本研究的目的是确定个人争球动力学以及与争球表现相关的其他候选因素是否能够区分球队的争球表现。16名俱乐部级别的前锋（身高：1.80±0.1米；体重：99.0±18.2千克）最初被分成两个争球组。总共测试了10种不同的争球组合，球员在两个组之间随机交换。由位于争球两侧的两名观察员判定争球的胜负。每次争球比赛后评估疲劳程度（100毫米视觉模拟量表（VAS））和争球努力程度（6 - 20级主观用力感觉等级（RPE））。通过装有仪器的争球测力计获取个人争球动力学数据，并通过垂直跳跃高度来表示肌肉力量。使用学生t检验来区分获胜和失败的争球组。使用重复测量方差分析评估VAS和RPE。无论球员贡献计算方式如何，获胜的争球组合力大小显著更大（p < 0.002）。此外，获胜组的个人移动较少（p = 0.033），组合垂直跳跃高度更高（p < 0.001），但与失败的争球组相比，体重没有显著差异（p = 0.759）。虽然主观VAS和RPE值逐渐增加（p < 0.001），但在第1次和第10次争球之间未观察到个人争球大小的差异（p = 0.418）。结果表明，个人力量的组合、移动变化以及与争球表现相关的因素，如垂直跳跃高度，与球队争球的成功有关。
