Research On The Age Characteristics Of Tactical Decision-making Ability Of Male Soccer Players Aged Between 9-17 Years Old Of China

In the football matches,the best decision being making in the limited space and time which will bring advantages to the team is of great importance.For young players,good health,fast speed are often absolute advantages in the game.However,when being aged year by year,the ability of tactical decision-making is becoming more and more important,and it will gradually become the key factor for the success of the game.Presently,most of the empirical research on the ability of tactical decision-making in football is not comprehensive and the indexes of tactical decision-making ability are not comprehensive enough,moreover,most of them are qualitative research.In addition,age span for the research object is relatively limited and the similarity between the age levels will result in instability.Therefore,this paper tries to measure the tactical decision-making ability and present its characteristics which are in line with the aging of the players by starting from the perspectives of age,offensive and defensive tactics with the combination of quantitative and qualitative methods.This paper uses the decision-making ability test system based on photograph frame and video frame(video + questions)to carry out test for 216 male football player aged 9-17.After the quantitative and qualitative analysis of the test results,the following conclusions are made:1.Tactical decision-making ability's age characteristics shows significant difference.Generally,it is increased with the aging trend,during which there is also leap and declining.The specific performance is that it is rapidly developed in 9-12 years old,it is declined after 13 years old and rebounds after 13 years old and slowly develops in 14-17 years old.2.In the development process of the tactical decision-making ability,10 years old is the turning point,which is characterized by the increased proportion of the correct decision-making method;13 years old is the declining period of the development,which is characterized by the decreased proportion of the correct decision-making method.The cause of rapid development of 10 years is the qualitative change of the way of thinking,the cause of the decline of 13 years is not yet clearly.3.Overall,the age trends of the attack and defense indexed of the male teenage football players is synchronized except for shooting and there is no order for the development.But in different tasks,they show some difference in specific development trend.4.Under the same training environment,younger players can have the same level of tactical decision-making ability of the older players in this aspect.