Research On Differential Physical Fitness Training Of Juvenile Football Players In Different Positions

1.In terms of body shape,the average height and weight of the goalkeeper of the U17 echelon athletes in ShangGang were higher than those of the guards,the guards were higher than those of the forwards,and the forwards were higher than those of the guards.In terms of body fat index,the forwards had the lowest body fat,the goalkeeper is second,the linebacker is third and the linebacker has the highest body fat percentage.2.From the point of view of physical function,the ratio of the first 6 minutes of Yo-yo IR1 to the maximum heart rate of Yo-yo IR2 is the smallest for the defender,which means that the defender is more able to adapt to the higher intensity training,the striker is next,and the defender is the largest On the VO2 Max scale,the forward position has the highest VO2 Max,with the forwards and defenders ranked second and third.3.In terms of sports quality,the athletes of the U17 team in Shanghai and Hong Kong have the highest level of upper body strength of the goalkeeper,followed by the defenders,and the forwards and midfielders are ranked in three or four places respectively.However,in the level of explosive strength,the level of explosive strength of the forwards is the highest,and the goalkeeper is close behind,the backcourt players are third and the midfield players are last.The speed quality of the striker is the best,followed by the defender and the striker,the goalkeeper in the speed quality of the worst;flexibility,the goalkeeper than the defender,followed by the Avantgarde and striker.The difference of position of players in different positions is closely related to the heredity and training.4.Professional players need to train scientifically and "teach students according to their aptitude",so as to maximize the training efficiency and improve the performance of athletes.The focus of physical training for U17 s goalkeepers should be on anaerobic endurance,explosive power,reaction speed,coordination and flexibility,while the rearguard players should focus on developing explosive power,absolute speed and ANAEROBIC endurance,in order to guarantee and the vanguard intense physical confrontation and the Fast Recovery Ability,the vanguard member,should first develop the aerobic endurance,then is Nimble and the strength quality;The focus of the physical fitness training for the striker lies in the focus on the explosive power,anaerobic endurance and other sports qualities.5.In the selection of talents,the coach should arrange the special position of the players according to the players' body shape,sports quality and technical characteristics In the arrangement of position,the coach should also take into account the physical characteristics of the players,appropriately change the specific position of the players,so as to maximize the role of the players on the field;at the same time,when the coach trains the players,according to the physical ability structure model of each special position,we should make more specific physical ability training of special position.