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Analysis of the Biomechanical Characteristics in the Support Technical Aspects in Men’s 100m Running Phase

Author: XuWeiJun
Tutor: ZhangQingWen
School: Shanghai Institute of Physical Education
Course: Physical Education and Training
Keywords: 100-meter sprint Support phase Kinematics Surface electromyography
CLC: G822.1
Type: Master's thesis
Year: 2011
Downloads: 79
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Abstract


Kinematic data and EMG activity by the subjects in 100 meters running Leg During acquisition , and then come to the kinematic indicators and EMG geoscience data . And hope that through the analysis of the collected data and discussion , and seek common muscle Chinese Elite 100 - meter sprinter special technical characteristics and muscle force characteristics , and ultimately provide the theoretical basis and guidance for the the project sports training theory and method . Materials and methods : This article is selected 6 the active duty Hectometer athletes for the test object using a the American MotionPro X ? Synchronization test is the introduction of high-speed cameras and Germany 16 guide Biovision the multifunction EMG measuring instrument , mainly men one hundred support technical aspects meters running kinematics and EMG indices collected kinematic data were independently developed by the Shanghai Institute of Physical Education SBCAA CAI SYSTEM-SBCAS kinematic processing software for effective data subjects three kinematics data processing and analysis . The software to process raw data of surface electromyography is the comes by BIOVISION EMG acquisition system DasyLab10.0 Software . Electromyogram each subject three times the original data respectively for low pass filtering ( wherein high pass 20HZ, the low-pass is 400Hz ) , Clear the smoothed noise interference and the original data , and then , and then its full-wave rectified , the negative wave turned positive wave ; final IEMG ( the concentric IEMG ) , envelope , such as processing data . Conclusions: 1) the lowest point of the center of gravity of the athletes body appears for about 33.3% of the entire support phase moment after kicking the late stages of the body velocity increases the critical period , and late stages after kicking the center of gravity of the vertical velocity gradually stabilized ; 2 biceps femoris and semitendinosus muscles acting percentage ) in the buffer stage after kicking stage , are significantly higher than the other few muscles , accounting for overall muscle 50% of the work is done at the same time the gluteus maximus is involved in the exhibition hip , the body center of gravity fast forward the main power source ; 3 ) leg During muscle force order : the gluteus maximus → the rectus femoris → semitendinosus → biceps femoris → tensor → tibialis anterior muscle fascia lata .

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CLC: > Culture, science,education, sports > Sports > Athletics > Run > Short distance running
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