Comparative Study On Technique And Lower Limb Muscle Strength In Different Level Sprinter

This article aims at in-depth understand about following the improve of sprinter performance, the change of sprinter specific technique?the segment muscular strength and the rule of sprinter technique formation and development, in the same time, familiar with that in the support phase, the body segments collaboration rule and the which low limb muscular incur this change, and try to discovery the relationship between the sprinter technique and segment muscular strength. Methods by literature?kinematic analysis?isokinetic test and mathematical statistics analysis, comparing and analysis the difference and the connection of different level athletes' kinematic and isokinetic parameter. Propose the conclusions:1. With the improvement of sprint performance, athletes on the way to run technology shows the characteristics of the kinematic: hip Angle, Angle of knee, ankle support legs Angle and the Angle of swinging leg hip, knee Angle in the process of the whole support is smaller.With today's sprint flexor push technology is the development trend of consistent.And hip shear ground speed, supporting leg hip range and velocity of secondary athletes are relatively excellent athletes is small in comparison.In short, with the improvement of sprint performance athletes run in transit in the process of the lower limb is more curled up in a state of showed better sprint techniques.2. Link of sprinters lower limb muscle strength of the study, with the improvement of sprint performance athletes hip, knee, ankle flexion muscle group show that the maximum force, are the characteristics of high average power, strength, endurance.And at different levels in the link of lower extremity muscle strength of the athletes the hip and knee extensor muscle strength and ankle foot flexor muscles strength differences than the hip and knee flexor muscles and ankle dorsiflexion muscle group difference is obvious.Sprinter higher lower limb muscle strength can make main link in the process of the athletes in road run the force created by the muscle contraction can be more, faster, more fully applied to the athletes and ground, promote human body forward quickly, thereby improving sprint performance.3. Reasonable sprint techniques and sprint special coordination of power plays a decisive role for improving sprint performance.Sprint technique is the muscle strength of interaction between the external performance, in the reasonable movement technology as the premise, by improving the related effect of muscle strength, increase muscle power can effectively improve performance.Good link muscle strength, just need reasonable technology, powerful link muscle strength can be fully reflected. In a word, only in the movement technology and special forces interaction, coordination under the premise of can better promote the improvement of performance.