基于SEM结构方程模型对英超2019-2020赛季冠军利物浦夺冠技术指标分析

Analysis of Technical Indicators of Premier League 2019-2020 Season Champion Liverpool based on SEM Structural Equation Model

目的:用结构方程模型探究2019-2020赛季英超利物浦球队夺冠的技术指标之间的关系,为我国足球运动发展提供理论参考。方法:运用因子分析法、构建结构方程模型等研究方法进行分析,结果通过对利物浦球队技术指标构建结构方程模型建立进攻效率因子、传控因子、攻门得分因子、犯规防守因子、定位球因子、比赛消极因子等潜在变量,用路径系数分析潜在变量以及观察变量之间的关系,其中定位球因子、进攻效率因子、传控因子、犯规防守因子、比赛消极因子对攻门得分因子的路径系数从大到小依次分别为0.620、0.476、0.244、0.005、-0.328。结论在训练中重视在对抗情境下传球的成功率,以及前锋各项灵活性的训练,提高射门准确性,使用整体压迫战术提升防守质量避免不必要的犯规,对各类定位球技术和战术充分利用,达到出其不意的效果。

The objective of this paper is to use structural equation model to explore the correlation among technical indicators of Liverpool winning the premiership in 2019-2020 season,and to provide theoretical reference for the development of football in China.The methods of factor analysis,structural equation model and other methods were used in this research.Results:By constructing a structural equation model for the technical indicators of the Liverpool team,potential variables such as offensive efficiency factor,pass control factor,goal scoring factor,foul defense factor,set-piece factor,and game negativity factor are established,and path coefficients are used to analyze the relationship between potential variables and observed variables.The path coefficients of set piece factor,offensive efficiency factor,pass-control factor,foul defense factor and negative game factor were 0.620,0.476,0.244,0.005 and-0.328 respectively from high to low.Conclusion:In the training,we should pay attention to the success rate of passing the ball under the situation of confrontation,and the flexibility training of the striker,improve the accuracy of shooting,use the overall pressing tactics to improve the quality of defense to avoid unnecessary fouls,and make full use of all kinds of set-piece techniques and tactics to achieve unexpectedly good results.