摘要
Asoneofthemostimportantdailymotoractivities,humanlocomotionhasbeeninvestigatedintensivelyinrecentdecades.Thelocomotorfunctionsandmechanicsofhumanlowerlimbshavebecomerelativelywellunderstood.However,sofarourunderstandingofthemotionsandfunctionalcontributionsofthehumanspineduringlocomotionisstillverypoorandsimul-taneousin-vivolimbandspinalcolumnmotiondataarescarce.Theobjectiveofthisstudyistoinvestigatethedelicatein-vivokinematiccouplingbetweendifferentfunctionalregionsofthehumanspinalcolumnduringlocomotionasasteppingstonetoexplorethelocomotorfunctionofthehumanspinecomplex.Anovelinfraredreflectivemarkerclustersystemwasconstructedusingstereophotogrammetrytechniquestorecordthe3Din-vivogeometricshapeofthespinalcolumnandthesegmentalpositionandorientationofeachfunctionalspinalregionsimultaneously.Gaitmeasurementsofnormalwalkingwereconducted.Thepreliminaryresultsshowthatthespinalcolumnshapechangesperiodicallyinthefrontalplaneduringlocomotion.Thesegmentalmotionsofdifferentspinalfunctionalregionsappeartobestronglycoupled,indicatingsomesynergisticstrategymaybeemployedbythehumanspinalcolumntofacilitatelocomotion.Incontrasttotraditionalmedicalimaging-basedmethods,theproposedtechniquecanbeusedtoinvestigatethedynamiccharacteristicsofthespinalcolumn,henceprovidingmoreinsightintothefunctionalbiomechanicsofthehumanspine.
出版日期
2008年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)