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ID:62354508
大小:878.00 KB
页数:36页
时间:2021-04-29
《active movement ksu:主动运动堪萨斯州立大学.ppt》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、IsometricexercisesDefinition:Isstaticformofexercisewithoutchangeinthelengthofthecontractingmuscleandwithoutvisiblejointmotion.Staticcontractionproduceagreatamountoftensionandforceoutputonthecontractingmuscle.Duringisometriccontraction,strengthwillincreaseifitissustainedagainstresistancefora
2、tleast6seconds.inordertodevelopstrengththroughouttheROM,resistancemustbeappliedinseveralpositions.Theamountoftensionproducedduringtheisometriccontractionisdirectlyaffectedbythelengthofthemuscleofthetimeofcontraction.Thereforetheamountofresistancealsomustbevaryatdifferentpointsintherange.-Re
3、sistancecanbeappliedeithermanuallyormechanically.ExamplesofIsometricregimensBriefmaximalisometricexercise:inwhichthepatientperformsasinglesisometriccontractionisheldfor5to6seconds.Briefrepetitiveisometricexercise:inwhichthepatientperformsfivetotenbriefmaximumisometriccontractionagainstresis
4、tance.Multipleisometricexercise:inwhichthepatientperformstheisometricexerciseagainstresistanceappliedevery10degreesintheROMandholdfor10seconds.ThistypeofexerciseimprovemusclestrengththroughtheROMEquipmentusedwithisometricexercise1-Freeweightsandpullysystem2-Isokineticdevices3-Liftingaweight
5、thatprovidesresistancegreaterthantheforceofthemuscle4-whenthepatientperformstheexerciseagainstfixedobjects(pushingawall)Principles1-DeterminethepointintheROMatwhichthemusclecontractionistooccurandsetthepatientupaccordingly2-Appropriatestabilizationisneedtoavoidsubstitution3-Instructthepatie
6、nttocontractthemuscle,holdaleast6seconds,thenrelaxandrepeat4-HavethepatientcarryouttheexerciseatseveralpointsintheROM5-MakesurethatthepatientexhaleswhileexertinghismaximumisometricexerciseACTIVEMOVEMENTDefinition:MovementperformedwithintheunrestrictedROMcontrolledbythevoluntarycontractionof
7、themuscle.ClassificationofActiveMovement1-Activeassistedexercise:Inwhichassistanceisprovidedbyanoutsideforce,eithermanualormechanicalwhenmusclestrengthisinadequatetocompletethemotion.2-Activefreeexercise:Inwhichthevoluntarycontractionofthemusclecanperfor
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