Outstanding Athlete College Man 1500-Meter Run At Different Stagesrunning Posture Change And Its Characteristics

Objective:This study attempts to use means of biomechanics, the kinematics data measured of athletes, the obtained excellent college men’s 1500 meter athletes athletes in the 1500- meter run running posture change law of different location, and summarizes its characteristics.Methods: Subjects for Beijing university games men’s 1500 m before students’ final eight athletes.Subjects aged between 19 and 23 years old, had no history of lower limb or ankle pain, without the influence factors of normal gait.Use the JVC(models) cameras to track 1 #, 2 #, 3 #, 4 # and 5 # 5 point kinematic data collection.Data from sports biomechanics laboratory of Beijing sports university video system for processing, using repetitive measure analysis of variance analysis on the obtained data were statistically significance level is defined as p < 0.05.Results: Athletes in the 1 # and 2 # filming location of stride length, step time steps, single, single support time support/time the value of the ratio of the suspension and 3 #, 4 #, 5 # has significant difference(p<0.05), single step hang time there was no significant difference(p > 0.05);2. Athletes in different position of swinging leg touchdown moment Angle of ankle, knee Angle, hip Angle, the Angle of the thigh with significant difference(p <0.05), elbow Angle, trunk Angle there was no significant difference(p >0.05);3 athletes in different location support legs off the ground time Angle of the ankle,elbow Angle, the Angle of the leg has significant difference, the knee Angle,hip Angle and trunk Angle there was no significant difference(P >0.05).Conclusion:(1) excellent college athletes in the game with the increase of distance, in the process of running speed decline, single long extension, running motion coherence.(2) good speed downward trend in the process of college athletes in the game is changing into a straight line, and not "two head high, intermediate low" u-shaped curve.(3) outstanding college athletes in the sprint phase and there were significant differences in the launching phase of the movement technology, technical movement deformation of lower limb, swing arm technology, trunk Angle change difference was not significant.(4) college athletes compared with domestic and foreign excellent athletes, the outstanding college athletes in road run after the process stage and sprint speed ability is poor.