Jones Nicholas M P, James Nic, Mellalieu Stephen D
Department of Sports Science, University of Wales Swansea, Swansea, UK.
J Sports Sci. 2008 May;26(7):691-700. doi: 10.1080/02640410701815170.
Using a two-study approach, we examined a methodology for objectively depicting team performance and form in a professional rugby union side. Study 1 developed standardized indicators to examine a team's performance in a single match relative to their previous matches over a domestic season via a performance report and form chart. This resulted in standardized performance indicators that provided instant and coherent feedback on the team's performance relative to previous standards. Study 2 then utilized this methodology to compare a match between two professional sides, played the following season, to assess the extent to which the performance by one team affected that of the other. Comparison of the two teams' performances, for the match they played against each other, identified a drop in relative performance (against previous standards) for both teams on the same performance indicators. This appeared to be due to the match being a close, hard-fought contest particularly in the tackle and around the gain-line. The findings of the two studies suggest an accurate and viable methodology for depicting team performance that is superior to the global measures previously adopted. Presenting teams' current standardized performances (i.e. form) on a single visual scale also has utility for coaches within an applied setting. Future research should further investigate the effect of one team's performance on another through both individual and team outcomes.
我们采用两项研究的方法,研究了一种客观描述职业橄榄球联盟球队表现和状态的方法。研究1通过一份表现报告和状态图表,制定了标准化指标,以考察一支球队在国内赛季的一场比赛中的表现相对于其此前比赛的情况。这产生了标准化的表现指标,能就球队相对于此前标准的表现提供即时且连贯的反馈。研究2随后运用该方法比较了下一个赛季两支职业球队之间的一场比赛,以评估一支球队的表现对另一支球队表现的影响程度。对两队相互对阵比赛的表现进行比较后发现,在相同的表现指标上,两队的相对表现(相对于此前标准)均有所下降。这似乎是因为这场比赛势均力敌、争夺激烈,尤其是在擒抱和进攻线附近。这两项研究的结果表明,有一种准确且可行的方法来描述球队表现,该方法优于此前采用的整体衡量方法。在应用场景中,以单一视觉尺度呈现球队当前的标准化表现(即状态)对教练也有用处。未来的研究应通过个人和团队成果进一步探究一支球队的表现对另一支球队的影响。