A Relationship Research Between Performance Of Hundred Meters Athletes And Inertia Parameter Of Different Links

Objective:to clarify the relation between100-meter athletes of different inertia parameters and performance, and to further explore the factors related to the influence of some factors, for understanding the100-meter athletes should be considered in the training and selection of people more deeply, improve the scientific level of training and selection. Method:using the literature material, the CT image analysis system, motion image analysis software and statistical method, collecting related inertial parameters of30100-metre athletes of the completed work, due to the problem of testing time and funds, this paper selects the human different link’s center of gravity, inertia (relative position the hip joint, knee joint angle (flight) and a two phase) of four parameters of inertia and the front of the lower leg angle. The results are as follows:1) research shows that, in terms of the inertial parameters of relative position of center of gravity, affect athletic result four aspects of100meters athletes were significantly, respectively, on the trunk, leg and foot, and for different levels of athletes, its influence degree according to the foot, leg, the lower trunk and upper torso.2) analysis shows, sports scores of subjects and flight or correlation in driving phase of the knee joint and the front swing angle was highly significant, therefore, research thinks, knee joint in the air, the angle of the rear leg is in the range of148-163degrees, the most appropriate, front angle range can achieve the best results in the46-83. Similarly, the knee joint in the ground, the angle of the rear leg is in the range of150-170is most appropriate, front angle range should be40-60can get the best result.3) leg forward angle and performance correlation is highly significant, research shows: in the movement, the leg forward angle in the range of110-130, it has a certain significance to improve running economy. Through the analysis of different grade athletes visible, calf anteversion angle showed a very significant impact, but also in the basic training phase, which may be more important, because, to improve the technical movement when athletes an important reference variables.4) analysis of hip joint effect of the moment of inertia of the sports scores did not significantly affect the probability values greater than0.05, P. This may be because the moment of inertia of moment of inertia relative links including the frontal axis, sagittal axis and the vertical axis, and the hurdler is a one-way movement, hip joint transfer in maintaining the body posture stability and strength may play a positive role, also is not the amount of moment of inertia are very demanding on the.5) performance of100-metre athletes also is affected by many factors, such as the physical form. According to this study, subjects leg height ratio, accounted for significant correlation between the proportion accounted for, hamstring leg and sporting achievements firstly, thigh calf accounted for more than55.9%high performance universal. At the same time, with the keys for calf percentage over46.5%significant achievements, is conducive to improve the performance of.Conclusion:the future in the athlete’s training, should focus on knee joint anterior angle influence, important role is in front of technology. At the same time, the factors of leg anteversion angle is also an important consideration, which based on the stage of training may be more important. In addition, foot and leg inertia parameters have a significant role in the movement, material should be paid attention to.