| Wushu is a traditional sport in China, and its international development witnesses the traditional Taijiquan with a long history and a broad mass basis has become one of the favorite sports for the people in the world. Chinese Martial Arts Research Institute has made the Taijiquan become an independent event in the national martial arts championship competition. With the development of the modern competitive martial arts aiming at being"high, difficult, beautiful and new", and the implementation of the modern rules, the shills and tricks are becoming more competitive, comparable and enjoyable. Thus, the designated tough action has become the core of the skills and tricks.The 540°Flying Lotus Kick connected by the Dragon Bird Movements is not only the difficult moves the athletes are designated to perform in the optional skills and tricks of Taijiquan competition, but also the most vulnerable mistakes in training and competitions. Whether this action is completed successfully will have a direct impact on the achievement of the performance. To improve the training quality of the designated movement is essential to enhance the sport performance. To analyze the highly advanced sports action with scientific instruments has become the focus of the scientific martial arts research. Access information through comparative analysis of relative literature can found that the use of advanced scientific research on sports equipment combined with the sports biomechanics methods in respect of the C-class difficult wushu skills and tricks to do the qualitative research on the movement and technical analysis is still a blank chapter. The study was conducted by using scientific methods to direct athletes to improve their movements and set a theory foundation for building a database of high level acts as well as movement model.In this thesis, the author uses the literature data, the three-dimensional photographic camera for measurement, observation, mathematical statistics and expert interviews and other research methodology to analyze the technical movements. As for the three-dimensional measurement machines, two JVC9800 high-speed photographic cameras are used to videotape the whole process. The elite athletes in Hebei province doing the 540°Flying Lotus Kick connected by the Dragon Bird Movements from landing Skip are photocopied from the front and lateral view by using three-dimensional shooting. Then the system of McNair campaign measurement and analysis is used to analyze the highest quality images, which have been determined by the observation of referees through using the Zajiao Podolski parameters. The kinematic analysis of the techniques of the 540°flying lotus kick connected by the dragon bird movements, takeoff, shooting up and landing, among the Taijiquan athletes in Hebei Province's Martail Arts Team helps to explore the time characteristics of the whole move process, the focus of the body and its speed of change as well as the speed of change and angles of the ankle, knee and hip. Through analyzing the movement one picture after another, data are collected. The three- dimensional kinematic parameters such as the speed of the focus of body, angle of the joints, speed of the joints, and the height of focus of body, are finally collected and the kinematic characteristics of the process of movement are concluded. This research aims to reveal the regular pattern and the technical essentials of the athletes'successful completion of the movement, to identify their mistakes in order to compensate the inadequacies in their daily training, which can not be determined by the coaches with their experience, feeling and the naked eyes. By analyzing, this study reaches the following conclusions:First During the takeoff process, each ankle, knee and hip complete stretchis good to enhance the power dive to the ground and two legs acts in concert with the two legs is really greatly good to accelerate the speed of leaving of the center of gravity from the ground.Second Both the maximum cushion time and the D-value of the rotate speed of the shoulder joints and hip joints when takeoff occurs show that athletes has somewhat early twists during the jumping.Third The total time required by the male athletes to complete a 540°flying lotus kick connected by the dragon bird movements is 1.44±0.07 s, and female athletes, 1.52±0.07s. The vacated time for male athletes is 0.69±0.01s and 0.61±0.04s for female athletes.Men use more time than women in doing the vacated movement, and it is conducive to the completion of the rotational movement in air and improve the stability of landing.Fourth In the vacated stage, the vacated height of the center of gravity may not necessarily affect the quality of the completion of the action. When the physical center of gravity increased marginally, by speeding up hip rotation speed in the take-off stage can successfully complete the movement. Fifth In the vacated stage, the slapping action is mainly finished as the body's center of gravity are at the highest points or near the highest point, the most suitable point is to do the strike action at the same time when the body gravity center is at its highest degree.Sixth It is easily seen that at the moment when the athletes are landing into Dragon birds movement, the right foot usually touches floor ahead of the left one. It is because that the athletes vacated not high enough, and hence there is not enough time to prepare for the arrival on the floor.Seventh At the buffer stage to arriving on the floor, the physical center of gravity speed for male athletes is 2.31±0.53m / s, and 1.76±0.33m / s for female athletes. The buffer time for stability used by the male athletes is 0.37±0.03s, and female athletes, 0.45±0.02s. In the process of landing on the ground, male athletes have powerful acting force than female athletes, and the males'time needed for stability is shorter than that of the females. In this stage, female athletes have relatively poor stability, and consume longer time in finishing the action.
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