Influence of knee position on the postural stability index registered by the Biodex Stability System

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dc.contributor.author Pereira, Hugo Maxwell
dc.contributor.author Campos, Tarcisio Folly de [UNIFESP]
dc.contributor.author Santos, Marcelo Bannwart [UNIFESP]
dc.contributor.author Cardoso, Jefferson Rosa
dc.contributor.author Garcia, Mauricio de Camargo [UNIFESP]
dc.contributor.author Cohen, Moises [UNIFESP]
dc.date.accessioned 2016-01-24T13:51:51Z
dc.date.available 2016-01-24T13:51:51Z
dc.date.issued 2008-11-01
dc.identifier http://dx.doi.org/10.1016/j.gaitpost.2008.05.003
dc.identifier.citation Gait & Posture. Clare: Elsevier B.V., v. 28, n. 4, p. 668-672, 2008.
dc.identifier.issn 0966-6362
dc.identifier.uri http://repositorio.unifesp.br/handle/11600/31008
dc.description.abstract The importance of knee position for bodily stability is described by some authors, however Biodex Stability System (BSS) trials have not been used to assess the reliability and effects of different knee positions. the purposes of this study were to test the reliability of BSS indices using two knee positions in the measurement protocol (either permitting slight knee flexion or maintaining them locked in total extension) and to compare the BSS indices between these two knee positions. the measurements were taken of the Overall Stability Index (OSI), Anterior-Posterior Stability Index (APSI) and Medial-Lateral Stability Index (MLSI) during a 30 s protocol which gradually and automatically increased in difficulty among 21 healthy female subjects (22.8 +/- 1.0 years old). the subjects performed four trials which, without visual feedback, permitted knee flexion as well as four trials which did not, in a randomized order. the first two trials in each set were used for familiarization only. Permitting slight flexion yielded better reliability results (OSI Intra-class Correlation Coefficient [ICC] = 0.93, APSI ICC = 0.90, MLSI ICC = 0.89) than maintaining the knee in total extension (OSI ICC = 0.88, APSI ICC = 0.87, MLSI ICC = 0.79), with good agreement in the Bland and Altman test. Moreover, permitted knee flexion in BSS presented better balance stability values for OSI (P = 0.001) and APSI (P = 0.024), however the MLSI did not present significant difference between positions (P = 0.345). (C) 2008 Elsevier B.V. All rights reserved. en
dc.format.extent 668-672
dc.language.iso eng
dc.publisher Elsevier B.V.
dc.relation.ispartof Gait & Posture
dc.rights Acesso restrito
dc.subject Reproducibility of results en
dc.subject Postural balance en
dc.subject Knee en
dc.subject Biodex Stability System en
dc.subject Balance en
dc.subject Dynamic balance en
dc.title Influence of knee position on the postural stability index registered by the Biodex Stability System en
dc.type Artigo
dc.rights.license http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.contributor.institution Universidade Estadual de Londrina (UEL)
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.description.affiliation Univ Estadual Londrina, Londrina, Brazil
dc.description.affiliation Universidade Federal de São Paulo, Ctr Traumatol Esporte, São Paulo, Brazil
dc.description.affiliationUnifesp Universidade Federal de São Paulo, Ctr Traumatol Esporte, São Paulo, Brazil
dc.identifier.doi 10.1016/j.gaitpost.2008.05.003
dc.description.source Web of Science
dc.identifier.wos WOS:000260283700021



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