An Empirical Study On The Overall Speed And Rhythm Of 400m Athletes

The 400 m race is widely recognized as the most difficult sprint event to run.It not only requires high speed quality and speed endurance,but also requires good speed distribution ability.In recent years,the rhythm of 400 m running speed has been paid much attention by many experts and has been studied with considerable achievements.However,in the process of referring to relevant materials,it is found that most of the experts' research focuses on the study of the full speed rhythm of elite 400 m runners,while there are few studies on the full speed rhythm of adolescent female 400 m runners,especially the lack of empirical research in this regard.Compared with the elite women 400 m athletes,the most important reason is that they have less competition experience and poor speed and speed endurance,and they do not have a good and stable pace throughout the competition.Then,what kind of speed distribution should be adopted by the teenage female 400 m athletes in the whole process of the competition,which is more conducive to their own sports level to get the best performance,so as to achieve excellent results.This study using the method of documentary,video analysis,mathematical statistics,comparative analysis and logical analysis,the national youth championships in 2019 in shandong province and the 14 th student(secondary)two games,reach the level of national secondary athletes in 64 women(15-18)400 m athletes throughout each segment(0-100-m,100-200-m,200-300-m,300-400-m),the statistical analysis of time parameters and speed due to the limited field acquisition is difficult,equipment conditions,the influence factors,such as This paper refers to the achievements of the top eight women 400 m athletes in the2016 national track and field championships,and makes statistics and analysis on their four100 m segmental time parameters and speed parameters.According to the research needs,64 teenage female 400 m athletes were set as group A,and China's elite female 400 m athleteswere set as group B.Will group A and group B athletes throughout the time of each section parameters and speed of transverse and longitudinal comparative analysis,summed up the current youth women's 400 m athletes in the entire speed change characteristics of rhythm,find out their gap between with excellent woman 400 m athletes,puts forward the corresponding strategy,for teenagers in China after 400 m athletes training and competition to provide scientific theory and practice basis,and further enrich 400 m related theoretical system.The results show that:1.The rationality of the allocation of the full speed of the athlete is reflected in the size of the time difference between each segment and the time difference between the front and rear.The teenage female 400 m athlete should reasonably allocate the time of each segment,control the time of the first half,reduce the time difference between the front and rear,and reduce the time of the last 100 m segment.2.Changes in the rate of young women's 400 m athlete fully present the characteristics of the "shift",the segmentation speed level difference is bigger,the first 100 m segment acceleration excessive weakens the fourth at a speed of 100 m section,show that athletes to control the acceleration of the first 100 m segment,extend the original phosphate system power capability,behind is to ensure that the foundation of a stable speed.3.The teenage female 400 m athletes should reasonably arrange the running speed during the whole course,pay attention to control the speed of the fastest section and avoid excessive use of the speed reserve,which is conducive to reducing the decline rate of the last two 100 m sections and reducing the amplitude of the fluctuation of the whole course speed,which is an important guarantee for excellent performance.4.400 m running requires high control ability of the full speed of the athletes.The teenage female 400 m athletes need to improve their maximum speed control ability.In addition to maintaining a relatively high speed,the maximum utilization rate of the last two 100 m segment speed should be improved to achieve the optimization of each segment speed.5.Excellent women's 400 m athletes in the entire game show: the reasonable distribution of each section of time especially the first two 100 m of the time,and control the speed of the fastest section,decreased after two 100 m speed droop,keep the speed of each section is relatively uniform and smooth,makes the entire speed fluctuation is small,the character of the whole reasonable pace.6.The establishment of quantification standard for each segment of time pattern of the teenage female 400 m athletes can timely judge and evaluate whether the training intensity of the athletes and the allocation of each segment of time are reasonable,so as to provide a scientific and reasonable reference standard for the training and competition of the teenage female 400 m athletes in China.