| Since 1992 Barcelona Olympic Games the women's judo competitions have been established, Chinese women's judo has achieved excellent results, in 2000,2004 and 2008 Olympic Games. Especially in the 2008 Olympic Games, China's judo athletes have achieved three gold and a copper. Yu-Hua Xu, one of the national team of elite athletes who prepared for the 2008 Olympic Games and the most training targets, she missed the final because of the injury. However, she succeed and won the 63kg class title in the 11th National Games, because she has indomitable fighting spirit and overcome the injury.In this study I will take Yu-Hua Xu as individual objective, use of case studies and mathematical statistics methods to study her characteristics of its preparation stage of training before the game, in order to providing reference for promoting China's women's judo preparation stage of training. The main conclusions of the study are following:1. Yu-Hua Xu training mission of the preparation stage before the game was arranged not only in principles of sports training, but also closely combined with its own characteristics, so that the entire preparation phase can be carried out gradual, orderly. It has laid a solid foundation for the reserve of the pre-competitive state and the adjustment of the post-competitive state.2. Yu-Hua Xu prepared a small proportion of the basic strength exercises, but focused on the special forces during the preparing time, in the second phase basic strength were same, but the focus turned to personal weakness. The main difference of the the quality of training was that the pre-integration technology portfolio, combatting in the fast conditions to complete in later time, endurance training closing to post-race time. The features of technical training content transferred from simple to complex, from diverse portfolio to the conditions of actual combat by the combination, and finally conversed to analog of competition; tactical training has mainly taken a pre-supporting method for video analysis, and the latter period has taken simulation training and combat exercises to consolidate.3. Yu-Hua Xu training load characteristics are reflected in the amount of training is first decreased and then increased, then decreased again, the intensity was adverse. The turn of these can assure the smooth of the training load and also make the competiitve state of the pre-race adjusted to the best.4. During controlling weight reduction in weight, the reduction weight of Yu-Hua Xu did not exceed lkg every week, the off-season weight of 66.5kg also were in the normal fluctuation range, the main approach was low-intensity aerobic exercise with a long period of high-protein diet mix, a variety of nutrient intake in addition to vitamin C and trace elements of magnesium and zinc below the standard recommended level, which can meet the body needs;5. From the blood parameters RBC, WBC, hemoglobin and hematocrit of the data results of Yu-Hua Xu, the results show that her functional state improved gradually before the game, and her competitive status also gradually improved; the trend of the creatine kinase and blood urea nitrogen data and the trends of movement intensity, physical activity are in the same. The above six indicators in the preparation stage were not abnormal, indicating that the arrangement of the training load is more reasonable;6. Yu-Hua Xu has mainly taken the recovery training methods, including active rest, sports massage, nutrition intervention and sauna, including a variety of rehabilitation measures; as well as original sports injury rehabilitation and periodic inspections to make their training quickly recovery, and ensure the smooth implementation of the training mission.
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