EMG Analysis Of Muscle Force In The Final Thrust Phase Of China Excellent Men Javelin Athletes

Object: This research attempts to introduce Javelin Throw EMG studies were,Javelin stage of trying to build the EMG patterns, By studying the muscle in order to detect the contribution rate, Which targeted certain muscles to improve training methods and means, From a new angle to illustrate the javelin Technology rationality of science, To improve and rationalize the muscle strength training program provides a theoretical basis.Method: In this study, produced in Finland MuscleTesierME6000 8-lead portable EMG Of the nine outstanding athlete throwing the javelin for signal acquisition, Analysis software for the major muscle active EMG analysis.Conclusion:1 Javelin Thrower Final Exertion Preparation part:(1) The last strength prepare parts muscle began to discharge sequence in accord with "large joints, first activities, but some athletes principle in the last strength ready to part due to no good control cause javelin radial muscle first send force ;(2) Abdominal muscles and external oblique biceps throughout the last stage of shot-putting continued strength ;(3) In the last strength preparation part, should shorten single-support transition from the time required to support both feet, raise the level of speed utilization rate;(4) Some athletes in the last strength ready to part deltoid muscle and trapezius muscle, the contribution that high in this part and deltoid muscle and trapezius muscle too nervous, whole muscle coordination is poorer, deal with muscle coordination force strengthen practice .2 Javelin Thrower Final Exertion Acceleration part: (1)The last strength accelerate part nine athlete abdomen is outside the oblique muscle in the strength, complete "full bow" action, abdomen has been fully outside oblique muscle tension, in the last strength accelerate section begins moment, make rapid contraction force driving throwing arm forward, the torso of the "thrash javelin moves when accelerating" play a positive role ;(2)The last strength accelerate muscles muscle electrical activity in the end, the order of tibial muscle first before end sends force, followed by external oblique muscle and seated abdominal muscle and deltoid muscle, radial send force, accord with the closing bottom-up sends force by lower limbs, make momentum to the torso, again by throwing arm to the torso;(3) With simultaneous video can see, the last strength accelerate the contribution of part deltoid muscle with smaller, its high center of gravity, probably, "partial straight full bow" action not fully, the amplitude slants small, "whip" action not related to such factors with all our strength .