A COMPARISON OF CUTTING TECHNIQUE PERFORMANCE IN RUGBY UNION PLAYERS
A COMPARISON OF CUTTING TECHNIQUE PERFORMANCE IN RUGBY UNION PLAYERS
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DOI：
10.1519/jsc.0b013e318207ed2a
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发表时间：
2011-10-01
影响因子：
3.2
通讯作者：
Caulfield, Brian M.
中科院分区：
文献类型：
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作者：
Green, Brian S.;Blake, Catherine;Caulfield, Brian M.
格林，BS，布莱克，C，和考尔菲尔德，BM。英式橄榄球联盟运动员切割技术表现的比较。J Strong Cond res 25(10)：2668-2680,2011-橄榄球联盟是一种动态跑动游戏，要求玩家定期进行改变方向的动作，以避免玩家的反对。改变方向/切割任务的特点是快速减速到植物腿(PL)，然后由推开腿(POL)再加速到新的方向。识别切割任务的运动学特征及其与比赛能力的关系，可以为教练员和力量训练人员设计有效的敏捷训练提供实用的指导，并为运动员提供反馈以提高技术水平。因此，本研究的目的是探讨橄榄球联盟球员切割任务的运动学和时间特征及其与成绩的关系。来自全爱尔兰联盟的半职业橄榄球联盟球员被分成先发组(N=13)或非先发组(N=10)，这是根据他们是经常被选入首发球队还是替补替补球员。每个参与者都配备了反光记号笔，并进行了10次切割试验(左5次，右5次)，以收集相关的运动学数据。切割试验的方向根据参与者的优势腿被分为显性切割和非显性切割。然后对所有试验进行分析，以确定在切割任务中PL和POL的关键事件期间的定时、角位移和速度。两组间完成切割任务的总时间在统计学上没有显著差异；然而，在优势切割和非优势切割中，起跑者显示出显著缩短了PL的接触时间，并启动了POL的膝关节伸展。这项初步研究表明，切割任务的组成部分在不同组之间不同，并可能为力量和条件专业人员评估方向变化技术提供洞察力。
Green, BS, Blake, C, and Caulfield, BM. A comparison of cutting technique performance in rugby union players. J Strength Cond Res 25(10): 2668-2680, 2011-Rugby union is a dynamic running game requiring players to regularly perform change of direction maneuvers to avoid player opposition. The change of direction/cutting task is characterized by rapid deceleration onto the plant leg (PL) then reacceleration by the push-off leg (POL) into the new direction. Identification of the kinematic characteristics of cutting tasks and their relationship to playing ability may offer practical guidelines for coaches and strength and conditioning staff to design effective agility drills and provide player feedback to improve technique. Therefore, the purpose of this study was to investigate the kinematic and temporal characteristics of cutting tasks and their relationship to performance in rugby union players. Semiprofessional rugby union players from the All-Ireland League were placed in a Starters (N = 13) or Nonstarters (N = 10) group based on whether they were routinely selected in the starting team or were reserve 'bench' players. Each participant was fitted with reflective markers and performed 10 cutting trials (5 left, 5 right) of a single 45 degrees cutting task to collect relevant kinematic data. The directions of the cutting trials were classified as a dominant or nondominant cut based on the participant's dominant leg. All trials were then analyzed to determine the timings, angular displacements, and velocities during key events of the PL and POL in the cutting task. The total time to complete the cutting task was not statistically significant between groups; however, Starters demonstrated significantly shorter contact time of the PL during dominant cuts and initiated knee extension of the POL faster than Nonstarters in dominant and nondominant cuts. This preliminary study demonstrates that components of the cutting task differed between groups and may provide an insight for strength and conditioning professionals to assess change of direction technique.