Misalignment of the knees: Does it affect human stance stability

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorSiqueira, Cássio Marinho
dc.creatorLahoz Moya, Gabriel Bueno
dc.creatorCaffaro, Rene Rogieri
dc.creatorFu, Carolina
dc.creatorKohn, André Fábio
dc.creatorAmorim, César Ferreira
dc.creatorTanaka, Clarice
dc.date2014-05-27T11:25:30Z
dc.date2016-10-25T18:33:44Z
dc.date2014-05-27T11:25:30Z
dc.date2016-10-25T18:33:44Z
dc.date2011-04-01
dc.date.accessioned2017-04-06T01:49:52Z
dc.date.available2017-04-06T01:49:52Z
dc.identifierJournal of Bodywork and Movement Therapies, v. 15, n. 2, p. 235-241, 2011.
dc.identifier1360-8592
dc.identifierhttp://hdl.handle.net/11449/72348
dc.identifierhttp://acervodigital.unesp.br/handle/11449/72348
dc.identifier10.1016/j.jbmt.2009.08.005
dc.identifier2-s2.0-79952699289
dc.identifierhttp://dx.doi.org/10.1016/j.jbmt.2009.08.005
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/893225
dc.descriptionIntroduction: Data describing the relationships between postural alignment and stance stability are scarce and controversial. Objective: The aim of this study was to evaluate the effects of sensory disturbances on knee alignment in upright stance and the effects of knee hyperextension on stance stability. Method: Kinetic and kinematic data of 23 healthy adult women were collected while quietly standing in four sensory conditions. Kinematic data: knee angle (dependent variables) variations were analyzed across sensory conditions. Kinetic data: as subjects with hyperextended knees showed a clear tendency to flex their knees as balance challenge increased, center of pressure (COP) parameters (dependent variables) were analyzed in each sensory condition among trial sub-groups: Aligned-Trials (knee angle < 180°), Hyperextended-Trials (>180°) and Adjusted-Trials (>180° initially, turned <180° under challenging conditions). Results: Differences were found in mean velocity of COP in two conditions showing that knee alignment can affect stance stability. Conclusion: Knee hyperextension is a transient condition changing under postural challenges. Knee hyperextension affected postural control as mean velocity was the highest in the hyperextended group in natural standing sensory condition and lowest with sensory disturbance. © 2009 Elsevier Ltd.
dc.languageeng
dc.relationJournal of Bodywork and Movement Therapies
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBalance
dc.subjectEquilibrium
dc.subjectKnee
dc.subjectPostural alignment
dc.subjectPosture
dc.subjectStanding stability
dc.subjectadult
dc.subjectclinical article
dc.subjectfemale
dc.subjecthuman
dc.subjectkinematics
dc.subjectknee function
dc.subjectleg inequality
dc.subjectrange of motion
dc.subjectsensory dysfunction
dc.subjectAdult
dc.subjectBiomechanics
dc.subjectBone Malalignment
dc.subjectFemale
dc.subjectHumans
dc.subjectKnee Joint
dc.subjectPostural Balance
dc.titleMisalignment of the knees: Does it affect human stance stability
dc.typeOtro


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