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ID:31985861
大小:4.24 MB
页数:71页
时间:2019-01-30
《急性运动干涉对颈总动脉血流动力学的影响》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、大连理工大学硕士学位论文EffectsofAcuteExerciseInterventionontheHemodynamicsinthe~一-一CommonCarotidArteriesAbstractHemodynamicsplaysanimportantroleintheregulmionofarterialstructuresandfunctions.Toinvestigateeffectsofacuteanaerobicandaerobicexerciseinterventionsonhemodynamicsinthecommoncaro
2、tidarteriesforathletegroupandsedentarycontrolgroup,12footballplayeraged20··24and12age·-matchedvolunteersaretreatedasresearchsubjectsandsuccessivelyunderwentacuteanaerobicandaerobicexerciseinterventions、析thapowercycle.AcolorDopplerultrasonographywasusedtodetectwaveformsofarter
3、ialdiameter(AD)andcenter.1inevelocity(CV)bothinquiescentconditionandafterexercises.Meanwhile,anelectronicsphygmomanometerwasusedtomonitorsystolicanddiastolicpressuresinbrachialartery.Accordingtodetecteddata,theWomerselytheorywasusedtocalculatehemodynamicparametersincludingflo
4、wrate(FR),carotidarterialpressure(BP),circumferentialstrain(cs),wallshearstress(wss),oscillatoryshearindex(OSI),peripheralresistance(Rq),dynamicresistance(DR),pulsationindex(PI),pressure-strainelasticitymodulus(Ep),arterialcompliance(AC)andarterialstiffness(p).Afterwards,stat
5、isticalanalysiswasperformedfordetectedandcalculatedhemodynamicparameters,mainresultsareasfollows:(1)Forbothacuteanaerobicandaerobicexerciseinterventions,athletesgroupandnormalcontrolgrouphavesomesimilartendencies.Threeminutesafterexercise,heartrate,maximumcenter—linevelocitie
6、s,maximumshearstress,maximumflowrate,systolicbloodpressure,circumferentialstrain,pulsationindexandoscillatoryshearindexincreasesignificantly.Onthecontrary,minimumcenter-linevelocities,minimumshearstress,minimumflowrateandarterialdiameterdecreasesignificantly.Withthetimegoing(
7、3-)15+30mins),thesehemodynamicparameterstendtolevelsinquiescentcondition.(2)Themaximumcenter-linevelocities,peripheralresistance,pulsationindex,maximumflowrate,systolicbloodpressure,circumferentialstrain,maximumshearstressandoscillatoryshearindexincreasedduringanaerobicexerci
8、secomparedtothoseduringaerobicexerciseatbothathletesgroupandsedentar
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