A Study On The Characteristics Of Lower Limb EMG In The Take-off Technique Of 323C Difficulty Movement In Competitive Wushu

With martial arts will continue to "high" "to" "beautiful" "new" direction, now competitive Wushu routine competition more and more intense competition, athletes of the requirements to the difficulty movement showed gradually increasing trend,the movement difficulty understanding not only stay in the usual special technical training, but must go deep into the nerve muscle force of the special from the deep analysis of the special technical features. The tornado feet 720 degrees as the research object, this study using surface EMG analysis instrument of technology to complete the test, mainly to participate in the action of the lower limb muscle EMG analysis.The purpose is to reveal the impact of movement and exercise the muscles of lower limbs motion features, and exercise muscle force and existing major differences, practitioners improve training effectiveness to provide reference.result:1 action completion rate reached 80%, the duration of the run-up phase duration and buffer stage from the experimental analysis,the duration of individual muscles are long. The duration of the take-off phase is shorter than the duration of the muscle.2 run-up phase, each muscle are activated almost simultaneously,gastrocnemius muscle lasts the longest 0.6128 s, iEMG values of rectus femoris 323.5 + 5.908 and vastus medialis 2.123 + 4.941.In the run-up to the contribution rate of the large number of rectus femoris.3 buffer stage, the lateral femoral muscle, the rectus muscle,the medial thigh muscle, the anterior tibial muscle and gastrocnemius muscle, the duration of the buffer is longer, the integral EMG value is larger for the medial and lateral femoral muscle. At the same time is also the buffer stage of the larger muscle contribution.4 the take-off stage, anterior tibial muscle duration of the longest for 0.52 s, secondly for tibialis anterior muscle and rectus femoris, tibialis anterior muscle iEMG value is 4.25 +5.182 uvs, muscle contribution rate is 4.32%, secondly shares lateralis and shares medial muscle iEMG value is 2.708 + 2.919 and 2.453 + 1.398. The contribution rate of the anterior tibial muscle was larger in the take-off stage.5 the whole movement, individual muscles almost activated at the same time, from the point of view of experimental analysis,mainly late stage in the run-up phase of buffer to the takeoff stage. Run-up stage is mainly gastrocnemius of longer duration,then to buffer stages involved in the action of acting with vastus lateralis muscle and vastus medialis. To take the stage of work to participate in the work of muscles and muscles of the anterior tibial muscle.Conclusion:The time characteristic of action, subjects of athletes in the run-up and the buffer phase difference is relatively small, the take-off stage is large. In the take-off stage of action, the legs are not even force, but the right leg. In the take-off stage,is the i EMG value and anterior tibial muscle contribution rate,muscle power is a big proportion. In the action, the two stage of the approach stage and buffer stage muscle duration is longer,compared to the take-off stage. At the take-off stage and iEMG value contribution rate of muscle power is three stages which accounted for the largest proportion of the.Suggestions:Master the run-up speed, ensure the quality of the action,reduce sports injury, increase the stability of the approach speed and takeoff, strengthen the lower limb muscle strength training, muscle development and coordination.