The Kinematics Of Three Jump Technology Of Elite Female Triple Jump In Three Athletes

Triple jump is a track and field sports project in its late development. It is athletes Li Huirong who opens the world women’s triple jump in our country out of 14.54 m, recorded by the IAAF world record for the first women’s triple jump. It means that our country takes the lead to enter one of the world’s advanced level of track and field events, became a memory of an era. Since 1992, after women’s triple jump became the Olympic Games, with the constant improvement of the triple jump techniques, the science of sports training, systematic, entered the stage of rapid development of the world women’s triple jump, emerged a large number of high level athletes. In 1995, Ukraine athletes Clavulanic made a record of 15.50 m, which was a new world record which made the women’s triple jump entered a 15 m "age". According to statistics, since 1999 the jump of women’s triple made 15 m or more jump in the world as many as 66 times. At present our country’s athletes surpass 15 m, reviewed the development of the women’s triple jump movement in China, the basic synchronization with the world, so far our best Monday in 2007 to 14.90 m to set the record in Asia. It shows that the development of China’s women’s triple jump is relatively slow, and there is a high level athlete in the world a certain gap. As is known to all, track and field is the world, therefore, our country’s athletics career should make great efforts so that we can be a real powerful sports country.Triple jump is higher for athletes’physical qualities, it needs a rapid run-up speed and good jumping ability, and strong leg strength. This article through the literature material law, scene shooting method, motion video analytic method, mathematical statistics analysis method on the 12th national competition in 2013 top eight women’s triple jump athletes as the research object. Take the three jump technique of relevant indexes of kinematic parameters studied, and compared with the world player, seeking out the women’s triple jump athletes in our country the technical defects existing in the triple jump technology and unreasonable technical factors, improving the performance of our athletes, to narrow the gap with the world. For the majority of coaches and athletes in training practice, and better improve the technology to provide the reference.Research mainly from the following several aspects:1. Athletes of Women’s triple jump in our country, though they have a good run-up quality, but failed to make full use of it, because in our country athlete’s run-up control relative to the world’s poor, before the rhythm disorders, horizontal speed loss is bigger, causing performance to the world player scores existed significant difference (P<0.01). To keep higher approach speed pedal accurately, giving full play to the run-up speed using ability, for the subsequent three jump technology make full advantage.2. To strengthen the stability of our country athletes in hop stage before the body center of gravity, it is more accurate to pedal, to reduce the level of the loss of the first jump as far as possible, on the instant analysis related to the instantaneous horizontal velocity from the ground:there existed significant correlation, (r= 0.876, r= 0.908, P< 0.05),the horizontal speed loss is much smaller, the longer the distance is. Due to stretching takeoff speed is slow,small amplitude factors such as the step on the ground, instantaneous horizontal velocity from the groundthere is a certain gap with the world.3. From the jump proportion of three perspective, our country’s athletes hop average was 38%, the step of average was 27%, jumping to 34% of the average, tend to hop type technology, compared with the world’s technology trends, hop is notably slants big, neglecting to keep the step and jump of horizontal velocity, decrease the hop far degrees into highly.4. Three horizontal velocity and vertical velocity have a gap with other players in the world, but our country’s athletes jump three leaps Angle presents a "big-small-big" trend, in the first two jumps in the range of the ideal leaps Angle, only jump phase of big leaps Angle, and the players are very significant differences (P< 0.01).5. Monday personal has good take-off technology, but the player’s perform ance still has a certain gap from the record. So it needs special technology to continue improving their Chinese athlete overall takeoff time slightly long, is relatively poor because of speed, strength and support ability directly affect the effect of stretching.