Comparative Study Of Women’s Heptathlon Athletics’Performance At Home And Abroad

Shot of the sport is one of the oldest sports, track and field project is one of the most important items in. In1896the first Olympic Games men’s shot put was listed as an official event, so far there have been one hundred history,1909American athlete Ross to create the first man shotl5.54meters world record. With the innovation of technology, improving and training method and the development of the theory, performance increased year by year, recorded continuously refresh, the current world record is23.15metres, than the first world record by7.61meters.Chinese male shot since1990June, Ma Yongfeng in Beijing in the track and field competition and created19.87meters national record, Chinese Male Shot level always remain stagnant, the man shot20meters, a Chinese man’s shot bottleneck, also be Chinese man’s shot out of Asia, to the world a. Until2005Tenth National Games on behalf of the Shanxi team, Zhang Qi threw out the good result of20.15meters, which makes the sleeping for15years on the national record jumps37cm. Chinese Male Shot finally ushered in a rebound. But in recent years, China’s men shot movement level is not, therefore, this research using a variety of methods, of Chinese man elite throwing technique comprehensive quantitative kinematic analysis, based on the eleven National Games male shot put athletes kinematical analysis of the throwing technique, to find out the influence of Chinese Male Shot sports remain stagnant reason, thus further improving our country men’s shot put technique, improve the overall level of China’s men’s shot put.The results show that:1.Shot put athletes in our country the research object left behind are generally high, the swing amplitude control is not good, the right pedal angle is larger, so that the whole system in the vertical ground direction vector velocity increment is larger, the horizontal speed limits2.Shot put athletes in our country the research object sliding time and excellent athletes in the world there exists significant difference. Its reason is his legs no coordination, swing push technique is not perfect enough, while causing the shot velocity and the velocity of body gravity difference, and, on the upper body lift larger glissade, affects the quality of movement beyond the equipment..3.Shot put athletes in our country the research object in the left foot hits the moment left arm has been basically open, left foot hits the moment there is no good control over the left shoulder and left arm, open time earlier, body tighten enough, shoulder axis beyond the hip axis, premature lifting body, resulting in the final thrust phase, the body muscle outbreak force inadequacy, hand speed and strength are relatively low.4.Of our elite male shot put athletes left a moment, left foot forward angle is relatively small, resulting in a vertical direction support reaction force, increased body weight and shot on the amplitude of the undulations, affected the entire technical movement smoothness and continuity5.Chinese Elite Male Shot Put Athletes in the final force accelerate the preparation part left knee angle is small, left a moment can better control the left leg knee joint angle, so that the body can form a good left support action, body centre of gravity is lower, the superposition effect of shot velocity, momentum transfer is not obvious.6.Of our elite male shot put athletes at finally forcibly phase of putting shot left hip extension moment, not fully, with hip flexion phenomenon, upper body forward is not active. The shot delivery speed, angle, pushing height and the excellent athlete of the world exist significant differences.