Medial Longitudinal Arch Deformation during Walking and Stair Navigation While Carrying Loads

dc.contributor.author Hageman, Elizabeth
dc.contributor.author Hall, Michelle
dc.contributor.author Sterner, Eric
dc.contributor.author Mirka, Gary
dc.contributor.department Kinesiology
dc.contributor.department Industrial and Manufacturing Systems Engineering
dc.date 2018-02-18T10:32:06.000
dc.date.accessioned 2020-06-30T04:47:47Z
dc.date.available 2020-06-30T04:47:47Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 2011
dc.date.issued 2011-01-01
dc.description.abstract <p><h2>Background:</h2></p> <p>Understanding the biomechanics of the medial longitudinal arch (MLA) may provide insights into injury risk and prevention, as well as function of the arch-supporting structures. Our understanding of MLA deformation is currently limited to sit-to-stand, walking, and running. <h2>Material and Methods:</h2></p> <p>Three-dimensional deformation of the MLA of the right foot was characterized in 17 healthy participants during several simulated activities of daily living. MLA deformation was quantified by both changes in arch length and navicular displacement during the stance phase of three motions: walking, stair ascent, and stair descent. Three levels of load were also evaluated: no load, a front load (13.6 kg), and a backpack load (13.6 kg). Force platforms and an eight-camera motion capture system were used to collect relevant lower extremity kinetic and kinematic data. <h2>Results:</h2></p> <p>Motion type had a significant (<em>p</em> < 0.05) effect on navicular displacement and arch length elongation with navicular displacement being greatest during stair descent, while the walking and stair descent conditions showed the greatest increase in arch length. External load did not significantly affect either of these two measures (<em>p</em> > 0.05). <h2>Conclusion:</h2></p> <p>Differences in the MLA deformation variables resulting from varied dynamic activities of daily living can be greater than those during walking and should be considered. <h2>Clinical Relevance:</h2></p> <p>Detailing the mechanics of the MLA may aid in further understanding injuries associated with the MLA, and the results of the current study indicate that these mechanics change based on activity.</p>
dc.description.comments <p>This is a manuscript of the following article: Hageman ER, M Hall, EG Sterner and GA Mirka (2011) “Medial Longitudinal Arch Deformation during Walking and Stair Navigation while Carrying Loads”, Foot & Ankle International, 32:623-629, (DOI:<a href="http://dx.doi.org/10.3113/FAI.2011.0623" target="_blank">10.3113/FAI.2011.0623</a>). Copyright © 2011 The Authors. Reprinted by permission of SAGE Publications.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/imse_pubs/121/
dc.identifier.articleid 1121
dc.identifier.contextkey 10151279
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath imse_pubs/121
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/44410
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/imse_pubs/121/2011_Mirka_MedialLongitudinal.pdf|||Fri Jan 14 19:12:52 UTC 2022
dc.source.uri 10.3113/FAI.2011.0623
dc.subject.disciplines Ergonomics
dc.subject.disciplines Kinesiology
dc.subject.disciplines Systems Engineering
dc.subject.keywords Medial Longitudinal Arch
dc.subject.keywords Stair Ambulation
dc.subject.keywords Load Carrying
dc.title Medial Longitudinal Arch Deformation during Walking and Stair Navigation While Carrying Loads
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 51d8b1a0-5b93-4ee8-990a-a0e04d3501b1
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