Research On The Influence Of Jumping Combined Training On The Running Skills Of Sprint

Objective: to dash special training theory as the theoretical basis,mechanism to explore the different combinations of the jump training of sprint training and lower limb strength,jumping in the teaching experiments of different forms of exercise are combined in an optimal way,why and how to practice the practice to solve the problem,the theory innovation of the teaching and training.At the same time,for the coaches and teachers at all levels,in the sprint teaching and training to provide reference and help,so that sprint teaching and training more scientific and targeted.Before and after the training experiment,the athletes' lower limb strength index and the kinematic indexes of the three joints of the hip,knee and ankle in the lower limbs were compared longitudinally.A total of 13 male and2 female athletes in 2016 selected track and field specialized classes were selected for 6weeks,3 times a week for skip training combined with 15 sports education majors.The indexes of the strength and kinematics of the lower limbs were analyzed by biomechanical methods.Through the 6 week jump combination training experiment,the results show:1.athletes' 30 m,60m,100 m,the standing long jump and the grade three long jump were greatly improved.2.the increase of the horizontal velocity,step length and space distance of the center of gravity is very significant(p<0.01).3.limb kinematics parameters: swing leg hip flexion angle velocity,shearing rate,hip and thigh shearing speed increased significantly(p<0.05),the supporting leg knee buffer amplitude,decreased significantly(p<0.05),the shearing speed,thigh and left thigh knee angular velocity,horizontal velocity increased significantly(p<0.01).The supporting leg ankle angle,swinging leg from the knee angle decreased significantly(p<0.01)support leg from knee angle,knee pedal support legs are smaller but not significantly stretch amplitude(P > 0.05).4.the speed of the starting is obviously increased,and the coordination ability of the body has been improved obviously.The results of the study show that:1.The jumps combination training has a significant influence on the athletes' lower limb strength,the way of running in the way,and the results of 100 meters.2.the trend of single step technology characteristics is: the support time is reduced,the support distance is increased on the basis of reducing the support time,and the distance is increased at the same time,so that the step length is significantly increased,so that the horizontal velocity of the center of gravity is significantly improved.Show changes in lower limb joint kinematic parameters of the supporting leg to a smaller ankle angle,knee buffer amplitude,the lesser amplitude swing hip extension,hip,knee angle decreased hip flexion angle decreases,the faster,the shearing speed of the thigh and hip joint has improved significantly.3.the coordination of the body and the rate of reaction have been improved obviously.