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공공누리This item is licensed Korea Open Government License

Title
Effect of Ligament Stiffness on Spinal Loads and Muscle
Author(s)
한갑수김은혁조금원
Publication Year
2012-12-01
Abstract
Ligamentsassistmusclesinstabilizingthespinewithinphysiologicalrangesofmotionbylimitingthedisplacements,buttheroleof
ligamentsinspinalloadsandmuscleforcedistributionremainsunknown.Thepurposeofthisstudywastoinvestigatetheeffectof
differentstiffnessonjointresultantforcesandmuscleforcesindifferentflexedpositions.Forthisstudy,fiveligamentstiffnesssets
weredeterminedfromtheliteratureandappliedtoamusculoskeletalspinemodel.Thedimensionsofthemodelwereadjusted
accordingtosubjectsintheinvivoexperimentsusedforvalidation,andspinalloadsandmuscleforcesweredeterminedduringflexed
positions.Thedifferencesbetweenthespinalloadsduetodifferentligamentstiffnesseswereinsignificant(maximumdifference12%).
However,thedifferentligamentstiffnessesshowedastrongeffectonindividualmuscleforces.Amongtheshortmuscles,lumbar
multifidiexertedonly65Nwithoutligamentsbuttheforceincreasedupto254Nduetoaddingthemaximumligamentstiffness.
However,theloadintheerectorspinaewassignificantlydecreased(30%).Theresultsofthisstudyshowedthatinadditiontolong
andsuperficialmuscles,ligamentsalsoplayedanimportantroleinstabilizingthespineinflexedpositions.
Keyword
LumbarSpine; Spinalload
Journal Title
InternationalJournalofPrecisionEngineeringandManufacturing
Citation Volume
12
ISSN
2234-7593
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Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/13994
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