Alterations in medial-lateral postural control after anterior cruciate ligament reconstruction during stair use

dc.contributor.author Hall, Michelle
dc.contributor.author Perraton, Luke
dc.contributor.author Gillette, Jason
dc.contributor.author Stevermer, Catherine
dc.contributor.author Gillette, Jason
dc.contributor.department Kinesiology
dc.date 2020-03-02T14:47:38.000
dc.date.accessioned 2020-06-30T05:45:47Z
dc.date.available 2020-06-30T05:45:47Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 2020
dc.date.embargo 2021-03-01
dc.date.issued 2020-03-01
dc.description.abstract <p>Background: Dynamic postural control during everyday tasks is poorly understood in people following anterior cruciate ligament reconstruction (ACLR). Understanding dynamic postural control can provide insight into potentially modifiable impairments in people following ACLR who are at increased risk for second ACL injury and/or knee osteoarthritis.</p> <p>Research question: Determine whether measures indicative of dynamic postural control differ between individuals with and without ACLR during stair ascent and descent. Methods: Seventeen individuals with ACLR (>1 yr post-surgery) and 16 age and sex-matched healthy controls participated. Centre of pressure (COP) measures included: i) COP excursion, ii) COP velocity, and iii) dynamic time-toboundary (TTB). Mixed linear models were used to compare COP measures for the ACLR leg, non-ACLR leg, and healthy controls during stair ascent and stair descent.</p> <p>Results: There were no statistically significant differences observed during stair ascent (all p > 0.05). Several statistical differences were found during stair descent for individual with ACLR, but not between those with ACLR and healthy controls. The ACLR leg had higher medial-lateral COP excursion (mean difference 1.06 cm, [95 %CI 0.08–2.06 cm], p = 0.036; effect size = 0.38) compared to the non-ACLR leg during stair descent. In addition, the ACLR leg had a lower medial-lateral TTB (mean difference −13 ms [95 %CI −38 to 2 ms], p = 0.005; effect size = 0.49) and medial-lateral TTB normalized to stance time (mean difference −5.8 % [95 %CI −10.3 to 1.3 %], p = 0.012; effect size = 0.80) compared to the non-ACLR leg during stair descent. No statistical differences were observed for anterior-posterior measures during stair descent (all p > 0.05). Significance: Taken together, findings indicate that there are small to large differences in medial-lateral postural control in the ACLR leg compared to the non-ACLR leg during stair descent. Further work is required to understand clinical implication of these novel observations.</p>
dc.description.comments <p>This accepted article is published as Hall, M., Perraton, L.G., Stevermer, C.A., Gillette, J.C., Alterations in medial-lateral postural control after anterior cruciate ligament reconstruction during stair use. <em>Gail & Posture</em>, March 2020; 77; 283-287. Doi: <a href="https://doi.org/10.1016/j.gaitpost.2020.02.011" target="_blank" title="Persistent link using digital object identifier">10.1016/j.gaitpost.2020.02.011</a>. Posted with permission. </p>
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dc.identifier archive/lib.dr.iastate.edu/kin_pubs/60/
dc.identifier.articleid 1059
dc.identifier.contextkey 16695224
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath kin_pubs/60
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/52544
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/kin_pubs/60/2020_GS_Alert_Pub___GilletteJC_Alterations_in_medial_lateral.pdf|||Sat Jan 15 01:14:33 UTC 2022
dc.source.uri 10.1016/j.gaitpost.2020.02.011
dc.subject.disciplines Biomechanics
dc.subject.disciplines Exercise Science
dc.subject.disciplines Kinesiology
dc.subject.disciplines Motor Control
dc.subject.keywords Centre of pressure
dc.subject.keywords Stair
dc.subject.keywords Anterior cruciate ligament
dc.subject.keywords Knee osteoarthritis
dc.subject.keywords Knee biomechanics
dc.title Alterations in medial-lateral postural control after anterior cruciate ligament reconstruction during stair use
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication bdf70773-aed0-41eb-bd40-438f1d7c646b
relation.isOrgUnitOfPublication f7b0f2ca-8e43-4084-8a10-75f62e5199dd
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