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Analyze 4-Bit of Volleyball Storm’s Techniques of Run-up and Jump Through Sports Biomechanics

Author: WanXuPeng
Tutor: NiuJianZhuang
School: Xi'an University of Electronic Science and Technology
Course: Physical Education and Training
Keywords: Volleyball Number 4 storm Approach Take off Sports Biomechanics
CLC: G842
Type: Master's thesis
Year: 2009
Downloads: 86
Quote: 1
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Abstract

In this study the telemetry EMG tester a constant speed DV camera two synchronous signal generator a five Elite Male Volleyball Players Volleyball 4 storm Approach and Take Action conducted a field test, the use of specialized analysis software analytic processing of EMG and camera combination sports anatomy, exercise physiology, sports training, sports biomechanics, and multi-disciplinary knowledge, not only can objectively reflect the favor of Approach and Take technology the kinematic parameters values ??and appropriate range , but many of the basic laws of this action can be found, for example, can be used to analyze a muscle or muscle group in the process, as well as different muscles at the same time EMG variation, for teaching and training in order to provide reference. Results: (a) kinematics (1) the last step of the run-up - study last step stride proportion of their respective total approach distance close to 50%; (2) the focus of the lowest point of time - study right knee angle average of 134.935 °; research object DU ** left hip angle shoulder length angle minimum and feet off the ground in the lowest point of the center of gravity to the left of this stage elbow maximum vertical velocity variation; (3) off ground moments - Password ** and Du ** take off from the ground instantaneous speed parameter values ??is relatively large and the center of gravity flight angle is relatively small; (4) the take-off stage - study ** king only in Takeoff buffer in the left lower limb in the process of participation in the buffer, and participate in the buffer time, the time is only 0.02s in the left lower extremity involved throughout the process of kicking kicking; the secret ** level speed loss rate is smaller than the others , the value of 53.573 percent. (B) muscle mechanics (1) run-up the last step - right biceps performance very excited discharge strongly value of 420uvs; IEMG value less than that corresponding to the left lower extremity of the right lower extremity muscles muscles; (2) buffer stage - right biceps higher level of excitement, discharge strong IEMG value of 486uvs; discharge strength of the right lower extremity muscles are larger than the left lower limb muscles, but was non-significant difference; \the 516uvs, right erector spinae, followed 510uvs; average of the right lower limb muscles discharge amount is smaller than the left lower limb muscles, but showed a non-significant difference; (4) run-up in the last step and take off the whole - - right biceps IEMG value, value 461uvs, followed by the right erector spinae, value 409uvs; shares of the right lower extremity of the left lower limb muscles in addition to the biceps femoris discharge than two muscle is smaller, the other three muscles than the right side corresponds to the muscle to be large, but showed a non-significant difference. The object of this paper is to accept years of professional training and participated in the National Undergraduate volleyball league professional athletes, their skilled action norms, coordination and economic muscle activity, so they test value can reveal the No. 4 storm run-up volleyball off Technique the basic law.

Analyze 4-Bit of Volleyball Storm’s Techniques of Run-up and Jump Through Sports Biomechanics

Abstract

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