| With the bottom of the qualifying group for the 2020 U-23 Asian Cup and Tokyo Olympic Games,China’s U-23 men’s football team has failed to compete in the Olympic Games for 12 years in a row,and there is a large gap between China and the world’s top teams and even the top Asian teams.Moreover,due to the impact of the COVID-19,the team has not participated in international competitions in the past two years,so the training results and offensive and defensive capabilities cannot be tested.However,the exciting performance of China U-23 Men’s football team in the 2022 Dubai Cup U-23men’s national Team Invitational tournament has undoubtedly brought hope to the depressed Chinese men’s football team.A comprehensive analysis of the attack and defense ability of China U-23 men’s football team can provide theoretical basis for the later matches and training,and promote the professional development of China U-23men’s football players and the development of China U-23 men’s football team.This paper selects the Chinese U-23 men’s football team participating in the 2022 Dubai Cup as the research object,and takes the attack and defense ability of the team in the 2022 Dubai Cup as the research object.The rank-sum ratio comprehensive analysis method is taken as the basic research method.At the same time,literature data method,video analysis method and comparative analysis method are used to analyze the offensive and defensive ability of Chinese U-23 men’s football team in different periods from the level of the overall offensive and defensive ability of the participating teams.Compare and analyze the attack and defense ability of the top three teams,find out the outstanding and weak attack and defense ability of the team,and provide new training ideas for Chinese U-23 men’s football team to prepare for the next match.Research results:(1)The RSR value of attacking ability of Chinese U-23 men’s football team is0.54,which is C level,ranking 6th among participating teams;The defensive ability RSR value of 0.39 is D level,ranked the 8th among the participating teams;The RSR of0.38 for offense and defense ranked sixth among the participating teams.(2)The attack ability of Chinese U-23 men’s football team is 16-30 minutes at the highest time,76-90 minutes at the lowest time and stoppage time;The highest period of defensive ability is 61-75 minutes,the lowest period is 16-30 minutes;The highest period of attack and defense ability is 45-60 minutes,the lowest period is 76-90 minutes and stoppage time.(3)Compared with teams of the same level,China U-23 men’s Football team has more advantages in attack ability than defense ability,ranking the first in attack and defense ability,and relatively weak in ball passing and control.The advantage of high index of defense ability is greater than that of low index of defense ability.(4)Compared with the top three teams,China U-23 men’s Football team has an obvious gap in attack and defense ability.Six indicators of attack ability fail to reach the average of the top three teams,while the indicators of low defense ability all exceed the average of the teams,and the gap in defense ability is larger than that in attack ability.Conclusion:(1)The rank-sum ratio method can comprehensively analyze the offensive and defensive capabilities of football teams.(2)The score index and the conceded goal index are the key indicators of the attack and defense ability of Chinese U-23 men’s football team.The former determines the attack ability and the latter determines the defense ability.(3)Lack of physical reserve and reasonable allocation of physical awareness,resulting in China U-23 men’s football team’s offensive and defensive ability into a state of premature decline.(4)Slow entry into the game,resulting in poor offensive and defensive ability of China U-23 men’s Football team at the opening stage.(5)Ball passing and control ability is the most lacking offensive and defensive ability of Chinese U-23 men’s football team,which not only slows down the offensive ability,but also makes the defense more passive.(6)China U-23 Men’s Football team is strong in attack and weak in defense,and has advantages in attack and defense ability compared with RSR teams of the same level,and there is a big gap between them and the top three teams. |