Kinematics Of The First Four Step Of Sprint Accelerative Run

One integrated technique is consists of many continuous teaches, and one of them must affect the near. In order to penetrate into the first four step of sprint accelerative run, we must understand the study actuality of its characteristic and to found the sides that require be improved. The aim of biomechanics to run's technique is to reveal the general regularity and to study the ways of run faster and economy. Practice proves that single theory analysis can not get to the aim; we must use the experiment test. So, the aim of this text is to search the difference of the infer and the result, and look for the factors of easy make mistake, offer reference for the couch and the athlete and search the break through way of training. The most parameters of the experiment don't present regular change, the writer think that the main reasons are the technique is not stable, two sides' strength are not equilibrium, pliability is inadequate, stride and frequency's relation is not deal with properly and so on. When understanding the technique of the first four steps of accelerative run, we ought to adverse the fellows moreover. (1)The extent of body lean and leg drive's angle depend on the condition of body suffered power. If you want use less leg drive's angle and more lean gesture to run, you must possess large horizontal weight and large back turn moment. (2)At the same time of body lean, if you can make the body a straight line, the acceleration will be more effectual. (3) It is better that make the first step's point of fall more approached the center's projection. (4) Alter the muscle's tension of swing leg can change the frequency of the leg revolve the hipbone's swing. (5) Because the most important factor of restrict cycling act is velocity, not the stride or the frequency, it is practicable that correspond the stride and the frequency according to the aim speed and find the fitting rhythm to the end. This text raises three advances in addition; they are the first, to supplement the working style of muscle, the second, to study and exploit the instruments of training, the last, and the questions of training.