Research On The Effect Of Rapid Expansion And Contraction Compound Training On The Agility Quality Of Students In The Football General Course

In modern football,fierce fighting and fierce confrontation,good physical quality is the basis for football players to reasonably complete the technical action and implement the team's tactical consciousness.The agility reflecting the comprehensive reflection of various qualities of players is an essential factor for football players to improve their individual technical performance and an important factor for the implementation of football tactics.Therefore,it is particularly important to improve the agility of football players.The purpose of this study is to explore the effect of the method of plyometrics training on the improvement of the special sensitive quality of students in general football courses and to explore the relationship between the method of plyometrics training and the traditional rope ladder training.The research methods in this paper are mainly experimental method and mathematical statistics method,and the plyometrics training is added into the football training course.The experimental subjects are the students of general football courses of tianjin institute of physical education,and the students are randomly divided into experimental group and control group.The experimental group and the control group were tested before the experiment.After 12 weeks of training,the test can reflect the five indicators of special agility quality of students in general courses of football.The final test results are statistically analyzed and the conclusions are as follows:(1)The traditional rope ladder training can significantly improve the sensitivity quality of students in general courses of football without the ball,but not significantly improve the sensitivity quality of students with the ball.After the traditional rope ladder training for 12 weeks in the control group,the difference of test results in 1 of the 3 non-ball special sensitive qualities was highly significant(P < 0.01),and the difference of test results in 2 was significant(P < 0.05).There was no significant difference between the two results with ball special sensitive quality(P > 0.05).(2)Plyometrics training is very significant for improving the sensitivity quality of students in general courses of football without ball,while the improvement of the sensitivity quality of students with ball is not obvious.After 12 weeks of plyometricstraining in the experimental group,the results of 3 non-ball special sensitive qualities were highly significant(P < 0.01),while the results of 2 non-ball special sensitive qualities were not significant(P > 0.05).Plyometrics training improved the lower limb muscle strength and improved the continuity and strength conduction of acceleration,deceleration and directional movement,but it was not obvious to improve the sensitive quality of ball special,and the sensitive quality of ball special was affected by a variety of factors.(3)Compared with the traditional rope ladder training,the plyometrics training can better improve the sensitivity quality of students in general courses of football without ball,but not significantly improve the sensitivity quality of students with ball.The experimental group and the control group conducted comparative analysis of the test results after the experiment.The difference of two test results of the three ball-free special sensitive qualities was highly significant(P < 0.01),and the difference of one test result was significant(P < 0.05).There was no significant difference between the two results with ball special sensitive quality(P > 0.05).It shows that the plyometrics training can better improve the training effect of non-ball special sensitive quality of students in general football course than the traditional rope ladder training,but the training effect of improving the students in general football course with ball special sensitive quality is not significant.