| 110-meter hurdle is a traditional advantage project in China.The 110-meter hurdle project in China urgently needs fresh blood injection,and the quality of reserve talents in the national 110-meter hurdle project needs to be improved.At present,there are few studies on the characteristics of the whole-distance running time of teenager 110-meter hurdles athletes in China.In this study,110-metre hurdlers who entered the final of the national competition in 2018 were taken as the research object.Five matches of three age groups were captured by field photography.The video data were analyzed and the technical parameters of each athlete's hurdle time,three steps between hurdles and the time of hurdle jumping were obtained.By means of mathematical statistics,this paper makes a comprehensive comparison and analysis of the time parameters parsed from the video,explores the time characteristics of the whole run of the juvenile,young and adult 110-meter hurdles athletes at the present stage in China,as well as the similarities and differences among the three age groups,and makes a thorough study of the time characteristics of the first three athletes in each age group at the present stage,and puts forward some pertinent suggestions.The results show that:1.At present,although there are differences among the three age groups of elite athletes in sports level,there is no significant difference in the time of competition results.2.At the present stage,the eight-step Hurdling Technique is still the mainstream for athletes of all age groups in China.There was no significant difference between the groups from the start to the first hurdle.The time from the start to the first hurdle was only the main factor affecting the performance of adult athletes.The time of complete hurdling,three steps between hurdles,the time of starting and supporting legs,and the time of hurdle stride taking off show different differences among different age groups,and the correlation between time parameters and sports performance is also different among the three age groups.There is no significant difference in the end-point sprint time among different age groups,and the correlation between the end-point sprint time and the performance is not significant.3.The average time of hurdling and the fastest time of hurdling are the most relevant to the athlete's athletic performance in all three age groups.These two indicators are the key to determine the athletic performance.The time of the first and ninth hurdles of juvenile athletes has the highest correlation with their performance,followed by the third,fourth and fifth hurdles,and the second and eighth hurdles.The time of the fifth hurdle of the young athletes has the highest correlation with their performance,followed by the third and sixth hurdles,and the smallest in the first and fourth hurdles.The time of the fifth and seventh hurdles of adult athletes has the highest correlation with their performance,followed by the second,third and eighth hurdles,and the sixth hurdle is the smallest.4.The speed curve of the athletes ranked first in all age groups is relatively stable,showing strong acceleration and speed-keeping ability.Athletes have their own personalized technical characteristics of the whole run,which correspondingly reflects their advantages and shortboards.At present,the gap between our elite adult 110 m hurdlers and the world's top level athletes is mainly reflected in the stability of the highest hurdling speed and the overall rhythm. |
PDF Full Text Request