| In recent years,China’s sprint men’s 100 meters project progress,Gradually closing the gap with the world’s highest level,But there is still a gap between the men’s 400 m and the world record,This gap reflects: at present,the number of outstanding sprinters in China is relatively small,Training methods and methods lag behind,At the same time,there are shortcomings in understanding and research on the characteristics of modern sprint technology.Wu Yuang is a hot runner for the men’s400m race at the 2021 National Games in Jiangxi Province,He won a gold medal at the National Athletics Grand Prix in May 2017,And with 45.83 seconds to refresh the personal history of the best,This paper takes the kinematics analysis and training case analysis of Wu Yuang’s technology as the research object,Using video analysis,expert interview and other research methods,In order to analyze Wu’s training program for the second half of 2020,And get the result.So as to find a breakthrough for Wu’s training arrangements for the 2021 National Games,In order to improve Wu Yuang’s sports performance and provide some training reference and theoretical basis for other professional athletes practicing 400 meters running in China.The following conclusions were drawn from the study:Wu Yuang,Guo Zhongze and Fannicke’s phase time fluctuation is big,the basic rule is that the first and second stage time is shorter,the third and fourth stage time is increased by different amplitude.Compared with the outstanding athletes in China and the world,Wu Yu-ang’s stability is not good,the reasonable distribution of physical ability and the ability to grasp the rhythm of competition in different stages need to be strengthened,so it needs to be improved continuously in the training.Wu Yuang and Wu Yuang’s personal best results,and Fannicke’s speed gap is large,Fannicke’s segmentation speed is significantly better than Wu Yuang.For Fannicke’s segmented speed distribution and the basic characteristics of physical exertion,it is a valuable competition experience in Wu Yuang’s training process.The average step length of Wu Yuang is lower than that of Guo Zhongze and Fannicke,while the average step frequency is higher than that of Fannicke and Guo Zhongze.It can be seen that Wu Yuang’s allocation of step frequency and step length,as well as the purposeful training of step length,are of great significance to improve Wu Yuang’s competition results.According to the comparison of the technical kinematics characteristics of Wu Yuang and the world’s outstanding athletes Fannicke and the main competition to Guo Zhongze,there is a certain gap between Wu Yuang’s grasp of the whole process technology and the control of rhythm,and the adjustment of step size and step frequency also affects the final competition results.Therefore,in the three stages of strengthening period,consolidation period and adjustment period,the contents of the whole running technology,starting technology,bend technology and rhythm control are designed to promote the upgrading of all aspects of Wu Yuang’s technology and lay the foundation for the achievement of excellent results.The results of Wu Yuang’s two sports performance tests showed significant differences.Through the targeted training of the training plan in the second half of the year,Wu Yuang’s training results were significantly improved,and the design and implementation of the training plan in the second half of 2020 played a positive role in promoting Wu Yuang’s training performance.In the training plan for the second half of the year,in view of Wu’s technical shortcomings,a targeted training programme and lower limb strength training were developed to enhance Wu’s leg strength,speed and rhythm training,effectively improving Wu’s segmental speed and piecewise speed rhythm control ability,physical and technical two-way improvement,and promoting Wu’s piecewise speed.After training,the step length of sports performance is higher than that before training,indicating that the targeted training plan in the second half of the year plays an active role in improving Wu Yu-ang’s step size.Although targeted training plays a certain role in improving Wu Yuang’s step frequency,Wu Yuang’s overall step frequency control ability needs to be further improved,which needs to be further improved in future training. |
