人体动作平衡控制与梯子设计之人因考

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1、人体动作平衡控制与梯子设计之人因考10/25/2006人体动作平衡控制与梯子设计之人因考??杨秉??国??交通大学机械工程学系2FallsfromLadderszMorethan17%ofoccupationalfatalfallsarefromladders(U4>>.S>.BureauofLaborStatistics,2001)>.zMorefallsoccurfromladdersinnon-occupationalsettings(Tsipourasetal2001)>.Non-occupationalladder/scaffoldf

2、alls2>.5OdenseMunicipality,Denmark1988-1997males2>.0females1>.51>.00>.50>.015-20-25-30-35-40-45-50-55-60-65-70-AgFaergemann&Larsen2000e*Bing-ShiangYang,Ph>.D>.,P>.E>.1IncidentRateper1000residents/year10/25/20063FallsfromLadderszMorethan17%ofoccupationalfatalfallsarefroml

3、adders(U>.S>.BureauofLaborStatistics,2001)>.zMorefallsoccurfromladdersinnon-occupationalsettings(Tsipourasetal2001)>.z20-27%ladderfallinjuriesneedtobehospitalizedfor7-8days(Bj??rnstigandJohnsson1992;FaergemannandLarsen2000)>.zLadderfallscauseseriousinjuriesinolderadults(Bj??

4、rnstig&Johnsson1992;Faergemann&Larsen2000,2001)>.zLateralfallsarethemostfrequentcauseofinjuriesofstepladderaccidents(Bj??rnstig&Johnsson1992)>.4ResearchQuestionszWhatarethefactorsthataffectlateralstabilityofahumanstandingonarigid,non-fixed,raisedstructure?zHowdoe

5、sthelateralstructuralcomplianceaffectsubjects’steppingandbalancingbehavior?zArethereanyageorgendereffectsonsuchbehavior?zArethereanylearningeffectsonbalancingonalaterally-compliantraisedstructure?zCanweimprovethesafetyofsuchstructures?Bing-ShiangYang,Ph>.D>.,P>.E>.210/25/200

6、65ResearchOutlinezFeasiblelateralweighttransferonrigidstructureszEffectsofunexpectedstructuralcomplianceonsteppingandbalancingbehaviorzAdaptivechangesofsteppingmovementszEffectsofsteppingstrategyonsystemstability6SignificanceofStudyzInsightsneededtoreducefall-relatedinjuries

7、causedbyfallsfromstepladders/chairs,especiallyinolderadults>.zDevelopingthefirststudyoftheinteractionofageandstructuralcomplianceonposturalstabilityofsteppingandbalancingbehavioronaraisedstructure>.Bing-ShiangYang,Ph>.D>.,P>.E>.310/25/20067ResearchOutlinezFeasiblelateralweig

8、httransferonrigidstructureszEffectsofunexpectedstructuralcomplianceonsteppi