Femoral Neck Stress in Older Adults During Stair Ascent and Descent

dc.contributor.author Deng, Chen
dc.contributor.author Gillette, Jason
dc.contributor.author Derrick, Timothy
dc.contributor.department Kinesiology
dc.date 2019-08-18T19:51:35.000
dc.date.accessioned 2020-06-30T05:45:43Z
dc.date.available 2020-06-30T05:45:43Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2018
dc.date.issued 2018-06-01
dc.description.abstract <p>A detailed understanding of the hip loading environment is needed to help prevent hip fractures, minimize hip pain, rehabilitate hip injuries, and design osteogenic exercises for the hip. The purpose of this study was to compare femoral neck stress during stair ascent and descent and to identify the contribution of muscles and reaction forces to the stress environment in mature adult subjects (n = 17; age: 50–65 y). Motion analysis and inverse dynamics were combined with musculoskeletal modeling and optimization, then used as input to an elliptical femoral neck cross-sectional model to estimate femoral neck stress. Peak stress values at the 2 peaks of the bimodal stress curves (stress vs time plot) were compared between stair ascent and descent. Stair ascent had greater compressive stress than descent during the first peak at the anterior (ascent: −18.0 [7.9] MPa, descent: −12.9 [5.4] MPa, P < .001) and posterior (ascent: −34.4 [10.9] MPa, descent: −27.8 [10.1] MPa, P < .001) aspects of the femoral neck cross section. Stair descent had greater tensile stress during both peaks at the superior aspect (ascent: 1.3 [7.0] MPa, descent: 24.8 [9.7] MPa, peak 1: P < .001; ascent: 15.7 [6.1] MPa, descent: 18.0 [8.4] MPa, peak 2: P = .03) and greater compressive stress during the second peak at the inferior aspect (ascent: −43.8 [9.7] MPa, descent: −51.1 [14.3] MPa, P = .004). Understanding this information can provide a more comprehensive view of bone loading at the femoral neck for older population.</p>
dc.description.comments <p>This accepted article is published as Deng C, Gillette JC, & Derrick TR. (2018). Femoral neck stress in older adults during stair ascent and descent. Journal of Applied Biomechanics, 34(3);191-198. https://doi.org/<a target="_blank">10.1123/jab.2017-0122</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/kin_pubs/52/
dc.identifier.articleid 1051
dc.identifier.contextkey 14795922
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath kin_pubs/52
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/52535
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/kin_pubs/52/2018_FEMORAL_NECK_STRESS_IN_OLDER_ADULTS_DURING.pdf|||Sat Jan 15 00:47:32 UTC 2022
dc.source.uri 10.1123/jab.2017-0122
dc.subject.disciplines Exercise Science
dc.subject.disciplines Kinesiology
dc.subject.disciplines Motor Control
dc.subject.disciplines Movement and Mind-Body Therapies
dc.subject.disciplines Musculoskeletal, Neural, and Ocular Physiology
dc.subject.disciplines Psychology of Movement
dc.subject.keywords bone stresses
dc.subject.keywords hip contact force
dc.subject.keywords estimated muscle force
dc.title Femoral Neck Stress in Older Adults During Stair Ascent and Descent
dc.type article
dc.type.genre article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication f7b0f2ca-8e43-4084-8a10-75f62e5199dd
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