Comparative Study On The Relative AgePhenomenon Of Men's Football Players Between China And Germany

To better understand the distribution of the birth day of Chinese and German football players in youth teams,league clubs and national team,using comparative research methods,mathematical statistics,etc.,analyzed The distribution of birth day of 109 Chinese national junior players,535 Chinese Super League club players,98 Chinese national team players,and 142 German national national youth players,641 German Bundesliga club players and 89 German national team players.The results show that:1.The average birth month distribution of the players of the national youth team is 3.95 and the standard deviation is 3.11,and the average birth month distribution of German national youth players is 4.95,with a standard deviation of 3.09.Among the national youth team players in our country,28.4 percent are born in January and 58.7 percent are born in the first quarter.Among German national youth players,14.1 percent are born in January and 38.8 percent are born in the first quarter.There may be a relative age phenomenon among the players of the national youth team in China and Germany,and the relative age of the players in the national youth team of China is more serious.In terms of month,the relative age effect index of the players of national youth team is about 0.209 which is higher than that of the German national youth team.In terms of quarter,the relative age effect index of national youth team players is 0.322,which is higher than that of German national youth team.2.The average birth month distribution of the players of the Chinese super league club is 4.87 and the standard deviation is 3.32.The average birth month distribution of players in the bundesliga club is 5.84,with a standard deviation of 3.47.The players born in January in Chinese premier league soccer account for 21.7 percent,and the players born in first quarter in Chinese premier league soccer account for 44.5 percent.The players born in January in the German bundesliga account for 11.2 percent,and the players born in first quarter in the German bundesliga account for 33.7 percent.In our country and the German league club players,there may be some relative age phenomenon,and the relative age of the German bundesliga club players phenomenon is better in China football super league club players the relative age of the phenomenon.In terms of month,the relative age effect index of the players of the Chinese super league club is 0.206,which is higher than that of the players of the bundesliga club.In terms of quarter,the relative age effect index of players of Chinese super league clubs is 0.206,which is higher than the relative age effect index of the players of the bundesliga club.3.The average birth month distribution of the national team players is 5.88 and the standard deviation is 3.55.The average birth month distribution of German national players is 5.64,with a standard deviation of 3.38.The number of players in our country born in January is 14.3 percent,and the number of players in our country born in the first quarter is 34.7 percent.The percentage of German national players who are born in January is 12.4,and that of German national players who are born in the first quarter is 34.8%.In our country and the German league club players,there may be no relative age phenomenon.In the month,China's national team players relative age effect index is lower than the German national team player relative age effect index and the value is about 0.02.In terms of quarter,the relative age effect index of our national team players is lower than that of the German national team and the value is about 0.02.