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Analysis On The Kinematic About The Excellent Teenagers Throwing Hammer’s Final Strength

Posted on:2013-12-23Degree:MasterType:Thesis
Country:ChinaCandidate:Q YaoFull Text:PDF
GTID:2247330395953738Subject:Physical Education and Training
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The purpose and content: hammer comes relatively late in China, and is not widelyavailable. The level of China’s teen-agers’ hammer has arrived in the90’s stagnating and isstill declining. With the advanced world level there is a considerable gap. Through theChinese Male Hammer Throw Final Push in three dimensional analysis techniques to identifythe last hard time and space characteristics of the technology to meet principles ofbiomechanics. Space motion of the main features of the use of hammer and athletes physicalcharacteristics of the various aspects of space motion information, as the hammer throwtechnical indicators, to judge good and bad sports technology.There are specific targets for thefinal stage of the joint angle shot, speed, height and position were related with the hammer,etc., combined with analysis of the world’s top athletes throwing kinematics data, the relatedindicators were analyzed to identify deficiencies in the technical aspects teen-agers’ Hammertechnology that our country there are major problems and gaps, rotary hammer throwing forthe teaching and training to provide theoretical foundation.Methods: In this study literature, about three-dimensional video analysis andmathematical statistics, first comparative analysis on body shape domestic and foreign playersto find out the distance between the two; then followed by the image analysis method on theMale Hammer’s Final Push Technology for kinematics analysis of relevant indicators, nextmake statistical processing to identify problems and gaps, and finally according to theanalysis results are as follows:(1)Overall changes in rotation speed of each joint line movement mechanics laws, thespeed change is reasonable. Compared with foreign athletes speed gap between the obviouschanges. Maximum rate of change of left knee, is a proactive force to bring the body to throwthe direction of lower limb rotation. Body on the right to force the main active ankle, pushingthe body to throw the direction of lower limb rotation. Active direction of the left shoulderturns to throw hard, maintains a low body position to lead the movement faster.(2) The joint angle increased gradually trend, the performance of the entire movementprocess technology initiative for the left side of the body force, and body fat, strengthcharacteristics of the right supplement.And with the right to throw the body on the left to lead the direction of high speed and gradually increasing the body center of gravity for the hammerheight for better shots.(3) Height of the body movement of joints, the overall performance of the process ofgradually increased, and increased significantly. Use the right side of the body to throw thebody aon the basic of the left turn, getting up to hammer a certain acceleration and height;overall change in line with Hammer technology features and the basic laws of motion.
Keywords/Search Tags:teen-agers, Hammer Throw, Final Push, Kinematics
PDF Full Text Request
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