| Strength training is a decisive element which can increase the training scores inathletics,and it is also the most noticeable problem for coaches in modern athletic exercises. It is the foundation of the coaches' scientific training and the guarantee of strength training's validity and pertinency to know about and grasp generally and systematically the advantages and disadvantages of different kinds of training methods ,to combine respective characteristics of muscle working in various items,and to choose the best method accordant to the features of muscle working to do strength training.Short-running belongs to speedy item of physique of Dominated Speed-Groups,which has such qualities as short-time and high-speed.in this race ,the working muscle groups embody the typical common characters.that is .obvious quick shrinkage .Besides,they also embody their own characters.This thesis just proposes the viewpoint of doing strength training according to the features muscle working after author's deeply studying and researching the features of athlete's muscle working in short-running . The academic aim of this thesis are ,first, to enhance the scientific level of 100-metre-running through experimental research and appliance ,second, to develop the 100-metre-running special quality and enforce special techniques so as to increase the grade ,third, to make the specialized training more obvious and save time and energy to raise efficiency ,forth, to further enlarge strength training theory of short-running race so that we can provide some guides in theory and practice for overwhelming coaches and teachers in the process of controlled training.In order to testify this viewpoint ,we employed literature investigation and survey of experts.Combined respective characteristics of muscle working in various items,several methods that were coincided with the characteristics of muscle working were selected and analyzed from large amount of training methods for developing 100m runners' power. To testify the effectiveness of the optimized training methods ,we choose 30 special students ,who are going to erroll the 2002 year's entrance examination ,as the research objects. Andthe experiment went on 10 weeks. Before the experiment, according to the principle of drawing sample ,we divided them into two groups: Group A is experiment group and Group B is comparative group. In the process, group A adopted strength training method similar to the characteristics of short-running muscle working , and group B adopted the traditional strength training method which is mainly to carry barbell. In the strictly controlled process and under the same conditions ,the experiment went on for 10 weeks ,and we only guaranteed the difference between the strength training methods and keep other respects unchanged .Before and after the experiment ,we respectively examine body quality and some kinematics indexes and we also keep the data before and after the experiment in order by means of statistics .Then the results were analyzed comparatively to evaluate its statistics significance .After 10 weeks' experimental research for teaching applying ,the final results show: First, after the 10 weeks'teaching training ,compared with the situation before experiment ,the two groups have been improved to different degree in score , but the improvement of group A is much greater than group B . Second , body quality index of two groups also has been increased , but the different between them also exists . There is clearer increase in group A's quick strength index and in group B's large strength indexes . Third , after the experiment, two groups show various changes in statistic indexes . For instance , group A's speed of moving legs is higher than group B . Group A's speed of moving leg to land is higher than group B.The angle changes of knee articulation of group A are more reasonable than group Bin the process of running .The results show that :as a kind of instructive thought and practical method , it is accessible and necessary to do str...
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