Compared Analysis On The Sprint Technique Of Elite Speed Roller Skating Athletes Both Home And Abroad

With the development of science and technology, the level of competitive sports becomes higher. The speed skating has reached a very high level, the score improved greatly. However, skating in China started relatively late, it is at the comparatively primary phase compared with many developed countries. In order to improve our skating performance and narrow the gap with the world elite athlete, this paper aims at the representative elite athletes both home and abroad, it obtains the kinematical parameter and data through image measurement and image analysis according to the reality of the sprint technique of our speed skating athletes. On this basis, we study the sprint technology of the speed skating elite athletes by the use of kinematic methods. From it, we find out the gap between us and the elite athletes and provide new thinking clue to the enhancement of the competitive ability.l.The former 8m score and 300m score in Speed Skating Sprint are directly related to each other. Therefore, during the 300m individual time trial project in the speed skating, enhance sprint speed continually is more conducive to the performance improvement.2. During the sprint stage, the gap between elite man's speed skating athletes of our country and the world's elite athletes mainly exists in stride frequency and stride length, which is one of the main factors results in the relative backward of our speed skating athletes.3. During the sprint, with the increase of the process, the increase of every step's speed was gradually reduced. In this paper, although the speed of increase of the gravity center speed of every athlete in the sprint is different, the overall trend in the center of gravity velocity is consistent, that is, during the process of sprint, with the change of the speed, the athlete's center of gravity will show a wave-like rise.4.Through the analysis, we obtain the trunk angle changes of elite roller skating athletes during the sprint, the athletes of the trunk angle is higher from the analysis on the overall sprint.