| Purpose:1) Pacing strategy has great impaction on the performance of energy-orientedspeed programs,and the unreasonable distribution of energy has become the bottleneckto affect the rapid development of China ’s short-distance speed skating. To a largeextent, the pacing of excellent Athlete reveals the rule to win,research and grasp thisrule is the rapid way to improve performance. In order to enrichment the pacingtraining theory, improve the scientific and effectiveness of the training practice, andpromote the rapid development of the project,this article studied the pacing of excellentwomen in500m speed skating;2) The level of special forces has great affection onathletic ability in short distance speed skating, lnot seize and grasp the muscle forcescharacteristics of the special strength cause blindly and inefficient in strength trainingpractice. In order to improve the special, targeted and effective in strength training,soas to promote the rapid development of the project,the article researched the muscleforces characteristics of special strength of China ’s women’s short distance speedskater.Methods: Base on digital rink testing and ISU inquiring sub-game data, throughmathematical statistics and theoretical analysis, this article study the pacing of elitefemale speed skaters in500m. Use of ME6000and Panasonic camera synchronizationacquisition of elite female500m athletes lower limb muscle strength characteristics onice speciality and land imitation exercise.Raw iEMG processing by MEGAVIN,andexport RMS, iEMG and RMS emg. The RMS standardization and the time normalized,cross-correlation of EMG model and the EMG model diagram complete inmatlab7.0.The map of muscles working percentage and muscle activation intensitydone in Origin7.0.Conclusion:1. The pacing of elite500m skater is regularity, the outer can be summarized: fastacceleration in the first straight and stable growth in the first curve, slowly growth inthe second straight and then maintain high-speed,lost speed sharply in the secong curveand then maintain high-speed,adjustment in the third straight and then maintain thespeed;the inner can be summarized: fast acceleration in the first100meters andreduced acceleration pacing in112meters, maintain stable growth in the first curve andthen reduced acceleration pacing, keeping speed before the second curve, remainedrelatively stable pace in the second curve and deceleration after outing, and thenmaintain high-speed sliding.2. The acceleration ability in the first100meters is the base of the excellentperformance in female500m speed skating, the ability to accelerate and maintain highspeed has great impaction on perfomace;the speed into the first and second inner curveshould be controlled reasonably,when outing the second curve should timely buffer,and should not to accelerate.3.The supporting technology of Chinese female500m skater athletes is stable and thecharacteristics of muscle strength is similar: anterior tibial and quadriceps femoris isthe major working muscle groups, the activation level of tibialis anterior muscle isgreater in flexion;while the quadriceps femoris is in extension; tibialis anterior muscleis constantly in power before landing on ice and inactivate when pushing, quadriceps femoris is activate in advance before landing and inactivated when off ice. Theindividual and average model has high representative, can provide powerful referencefor the future strength training and technical evaluation.4. The characteristic of muscle strength in supporting leg is similar between the straightspeciality and the land straight imitation,and it has high specific strength training value,but the level muscle activation, schedule between flexion and extension, and tibialisanterior muscle work schedules were need to be perfect;there are some differencebetween land curve imitation and curve speciality in supporting muscle strengthcharacteristics, in order to enhance the special of strength training, the action speed,external load and supporting conditions need to be improved. |
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