Kinematics Analysis Of The Chinese Women's Triple Jumpers' Run-up And Three-hop Take-off Techniques

The development of modern men's triple jump is to follow the development of the Olympic movement and flourish,to later in the process of the one hundred- year history of the 20 th century,great changes have taken place in men's triple jump,in both the technical movements,training methods and has major changes in rules,performance has been improved,has been to challenge the limits of human,is now the world record for the men's triple jump by the British athletes Edwards created 18.29 m in 1995.Later,women's triple jump development in the 1990 s,the IAAF was formally set up the women's triple jump events,until the world athletics championships in Stuttgart,Germany 1993 was classified as official event,in the Atlanta Olympics in 1996 were classified as official event,then rapid development throughout the world. So far China's women's triple jump results and the rapid development of technology,a leading position in Asia,but compared with the high level of women's triple jump athletes in the world has a big gap. This paper,therefore,to be held in Beijing in June, 2015 national track and field championship and track and field world championships in Beijing eight before the final test match women's triple jump athletes in the technical data as the research object,using the method of documentary,shooting scene,image analytic method,mathematical statistics method to our country outstanding female triple jump athletes run-up in the last two step technology and three hopped up parsing analysis technology,and the parsed data with excellent foreign women's triple jump athletes were analyzed,Find out the differences between them,and for the development of Chinese excellent women's triple jump technology to provide theoretical basis and technical reference. The results show that:1?In the last two steps on the step length and speed of our country outstanding female triple jump athlete pour 2 the average was 2.30 ± 0.16 m,step by step backward step average was 2.24 ± 0.11 m,compared with the athletes abroad,pour 2 step by step and triple jump athletes abroad have significant difference(P < 0.05),but step there was no significant difference(P > 0.05); On the run-up speed of the last two steps,the athletes step speed than foreign athletes,the average was 9.68 ± 0.38 m/s.2?women's triple jump athletes in China back into the hop phase as well as the cross step to jump stage horizontal speed loss is bigger,average 1.86 ± 0.41 m/s, 1.73 ± 0.19 m/s. Compared with the athletes abroad,there is a very significant difference(P < 0.01), while the single foot jump across step phase jump athletes significantly less than the foreign athletes speed loss in our country; In the triple jump,vertical speed compared with the foreign athletes were no significant difference(P > 0.05).3?women's triple jump athletes in our country the three leaps Angle were 17.8 ± 2.05°and 13.1 ± 0.99°and 22.9 ± 2.36°. In hop stage,our country athlete leaps Angle compared with foreign athletes have significant differences(P < 0.05),in the cross step and jump stage had no significant difference(P > 0.05),and cause the horizontal velocity and vertical velocity has a close relationship.4?Three Chinese excellent women's triple jump athletes jumping takeoff time were 0.65 ± 0.02 s,0.47±0.01 s,0.01±0.05 s,hop and jump stage compared with foreign sports there was no significant difference(P > 0.05),cross step jump stage has a very significant difference(P < 0.01).5?our country outstanding female triple jump athletes compared with the triple jump athletes abroad,in terms of three jump distance and foreign athletes have certain gap,China's women's triple jump athletes Three jump technical types are mainly composed of high jump and balance; Cross step and jump and the high correlation of the grade r = 0.798.