蘇州市優(yōu)秀短跑運(yùn)動(dòng)員起跑及加速跑的運(yùn)動(dòng)學(xué)分析.pdf

1、蘇州大學(xué)碩士學(xué)位論文蘇州市優(yōu)秀短跑運(yùn)動(dòng)員起跑及加速跑的運(yùn)動(dòng)學(xué)分析姓名：孫東華申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：體育教育訓(xùn)練學(xué)指導(dǎo)教師：陸阿明201109AbstractTh。e—K—inematicAnalysisonSpnntStartofelitesprintersinSuzhouTheKinematicAnalysisonSprintStartofelitesprintersinSuzhouAbstractPurposes：Usinghig

2、hspeedcamerasandmotionanalysistechnologyKinematicsdatawerecollectedfromelitesprintersinSuzhouThestudyanalyzedandidentifiedthecharacteristicsofsprintstartandtheapproachrunoftheathletesandcomparedtheseparameterswithoutstan

3、dingrunnersabroad，inordertOfindanddiagnosetheskillsthattobeimprovedThedatacollectedinthispaperwouldbeahelpfulmaterialforthefuturestudyMethods：SixelitesprintrunnersparticipatedinthisstudyThekinematicparametersofthesprints

4、tartwereestablishedonthebasisofa2Dkinematicanalysis，usingtwohighspeedcamerawithafrequencyof100frames／seetheparameterswereanalyzedandcomparedwithtopsprintrunnersintheworldResults：Thetechnologyofourelitesprintrunnerisclose

5、tOtheircontestantoverseas；Duringacceleratedphaseofrunning，thedurationofthesupportlegincontactwiththegroundreducesgraduallyalongwiththeincreasingspeedPartialoftheathletes’supportingtimeisexcessivelylongwhilethelengthofstr

6、idevariedbetweensubjects；ThedistancebetweenthecenterofgravityprojectionpointandfootstrikepointisreducinggraduallythefootstrikepointmovesaheadgraduallybeforethecenterofgravityprojectionpointThetorsolifts，namelythecenterof

7、gravitypromotionrhythm(promotionspeed)variedwithsomeathletesbenttorsoinsufficientlyConclusions：Comparedwithoutstandingrunners，TheSuzhououtstandingsprinterspossessareasonable“set’’positionDuringtheacceleratedstage，partial

8、athletespossiblyrunwithaunreasonablestridelengthatthebeginningofthestartTherhythmneedtobecontrolledWealsosuggestedthatthetorsopromotionrhythmneedtobecontrolledKeywords：sprintstartkinematicsacceleratedphaseⅡWrittenbySuper