Research On The Change Of Pace Rhythm Of Chinese And Foreign Men’s 100m Athletes

Sprint is a speed-oriented project dominated by physical fitness.It can be seen from the analysis of its dominant competitive ability that not only requires athletes to have good strength and coordination as the basis,but also needs to have a higher running speed.The space-time ability of the control action exhibited by the human body in the completion of running is called the speed rhythm.In a sense,the frequency is the embodiment of the rhythm.Through sorting out the literature,it has been found that Chinese athletes have always had the characteristics of generally faster and faster pace,and have accumulated many useful experiences and methods in developing their own characteristics and advantages and developing the pace.In recent years,the 100 m score has also made a major breakthrough..However,after consulting the literature,it is found that the previous research on the 100 m step frequency rhythm is generally a "phased comparative study",and there are certain defects in the response of the athletes to precise step frequency changes.In addition,with the continuous development of high-speed photography technology,The analysis of rapid displacement in human motion is more detailed.For those who want to further improve their performance and narrow the gap with the world’s best athletes,they must understand the inner relationship between many factors that affect the performance of the game.Therefore,the paper mainly selects the men’s 100 m final of the 2015 Beijing World Athletics Championships,the men’s 100 m final of the 2016 Rio Olympic Games,the men’s100m final of the 2016 National Athletics Championships,the men’s 100 m final of the 13 th National Games in 2017,and the IAAF Diamonds of 2018.The data of the men’s 100 m match in the Paris team is a research sample,and the regularity of the step frequency change of the men’s 100 m sprinter is taken as the research object.Through literature methods,video analysis,mathematical statistics,comparative analysis and other methods,the focus is on the variation of the pace of the contemporary men’s 100 m sprinters,in order to further deepen the understanding of athletes running in 100 m on the basis of previous studies.The law of medium step frequency changes provides certain theoretical value and practical significance for the development of China’s sprint.found in study:1)Men’s 100 m running scores were significantly correlated with the highest stride frequency and their first-time units(r=0.447,r=0.463,p<0.05),and showed a significant negative correlation with the highest number of stride cumulative occurrences(r= 0.466,p<0.05),reflecting that the athletes can control the timing of reaching the highest step frequency of the individual by controlling the excessively high step frequency within a certain range,and ensuring a certain number of highest step frequency occurrences is of great significance for achieving excellent 100 m results.2)The athlete’s full cadence rhythm shows a "へ" shape that is tilted to the right,left high and low right.Among them,the highest step frequency of foreign sports individuals generally appears in the 8th unit(16~17 steps),and the lowest step frequency generally appears in the first unit when starting;while the highest step frequency of domestic athletes generally appears in the 6th unit(12~13 steps)The lowest step frequency generally occurs in the end line strike phase.3)The cadence of men’s 100 m athletes generally shows a trend of rapid linear rise in the first 3 units(6-7 steps)after the start,and more in the last three units of the final sprint as an irreversible step frequency down trend;compared with domestic athletes Compared with the high-paced full-step tempo rhythm,foreign athletes generally have the characteristics of the step frequency rhythm of the initial frequency of the starting frequency in the starting acceleration phase,the gradual fluctuation of the step frequency to the highest step frequency,and the small decrease in the step frequency of the final sprint stage.4)Although domestic athletes have certain advantages in the highest step frequency,the gap between the ability to maintain the sub-limit step frequency(higher step frequency control power)and the world’s elite athletes is obvious,and domestic athletes are over-pursuing excessively high frequency.The characteristics of performance are not conducive to the maintenance of the whole pace.5)Su Bingtian’s gait change when the national record is refreshed is to appropriately reduce the step frequency of the starting stage,thus improving the fluency of the whole pace.For it,in the future,to improve the rhythm of the way(especially to maintain the relative stability of the pace)is the key to re-creating.6)Xie Zhenye has refreshed his personal best three times in the past two years.He has shown that he can improve his step size and create his personal best score by maintaining a certain step frequency stability.In the future,appropriately increasing its step size reserve to increase the relative competitiveness of the sprint phase is a relatively economical and consistent road to the current development of the world’s 100 m sprint.