Research On Building Specific Training Model Of Male 400m Runners Of The National Level 2

The 400-meters dash belongs to ultimate periodic games and is regarded as a short-distance run which can be divided into 3 periods—the period of acceleration, period of remaining maximum speed and the period of attenuation. The 400-meters dash follows the statistic rules which can be reflected from the following stage: starting the race, accelerating, reaching the maximum speed and gradually attenuating. In fact, it reflects the process that energy is provided. It is a changing process of energy providing—from phosphagen system,glycolysis system to aerobic oxidization system.The key point of improving the speed of 400 meters dash is to rationally use the energy providing ability of phosphagen system to prolong the energy providing time of glycolysis system to a maximum size and to reduce the energy providing rate of aerobic oxidization system.The instruments the author used in the experiment are literature review, interviews, questionnaires and case study. Start from the point of view of strengthening amateur sportsmen's training method in view of the 400-meters sportsmen who haven't reached level 2 target in school PE teaching and amateur training according to the successful experience and long time of practice of some qualified 400 meters trainers and some out standing PE teachers as well as the accumulation of the related literature review the author construct theoretically the model of training 400 meters male dash with the target of improving the speed of 400 meters dash. That is to say from the following 4 aspics, speed index,speed endurance index,aerobic endurance index,strength index。Listing the relative theory of mode training by analyzing and comparing the results got by the subjects both before and after the experiment the author tries to find out a suitable final index mode for specific training .The aim is to provide some recommendations for 400 meters dash sportsmen and PE candidates to reach or ever make a breakthrough for the national level 2. Another aim is to provide some useful advice of speciality training for the PE teachers or trainers at the basic level.The author got the following conclusions after the research:1. For the 400 meter runners who haven't level 2 there are 4 main index that can influence the improvement of speciality scores: speed index,speed endurance index,aerobic endurance index and strength index. Among them speciality speed training, speed endurance training and strength training are important which speciality speed endurance training are crucial.2. 60-meter and 100 meter running are used as speed index,200-meter, 300-meter and 500-meter running are used as speed endurance index,3000-meter running is used as aerobic endurance index,throwing back shot - putting and standing and jumping with ten steps are used as strength index. All above can preliminarily be proved that they are suitable for those 400-meter runners who haven't reached level 2.3. The experiment in this thesis shows that the features of the controlling index mode for level 2 men-400-meter runners speciality training are in speed index。The 60-meter score model features are 0.8s~7.3s and the 100 meters is 11.4s~12.0s speed endurance index,the features for 200 meter , 300 meter and 500 meter running are 23.5s~25.7s,37.0s~39.4s,68.5s~73.0s separately; in aerobic endurance index the score model features for 3000m running is 9min 40s~10min 10s; in strength training index,the score model features for throwing back shot - putting and for standing and jumping with 10 steps are 9.00m-11.50m,21.00m-26.00m separately.