Show simple item record

dc.contributor.authorPeltonen, Jussi
dc.contributor.authorCronin, Neil
dc.contributor.authorStenroth, Lauri
dc.contributor.authorFinni Juutinen, Taija
dc.contributor.authorAvela, Janne
dc.date.accessioned2013-12-10T08:05:44Z
dc.date.available2013-12-10T08:05:44Z
dc.date.issued2013fi
dc.identifier.citationPeltonen, J., Cronin, N., Stenroth, L., Finni Juutinen, T., & Avela, J. (2013). Viscoelastic properties of the Achilles tendon in vivo. <em>Springerplus</em>, 2 (May 8;2(1)), 212. <a href="http://dx.doi.org/10.1186/2193-1801-2-212">doi:10.1186/2193-1801-2-212</a> Retrieved from <a href="http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3661039/">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3661039/</a>fi
dc.identifier.otherTUTKAID_58259
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/42625
dc.description.abstractIt has been postulated that human tendons are viscoelastic and their mechanical properties time-dependent. Although Achilles tendon (AT) mechanics are widely reported, there is no consensus about AT viscoelastic properties such as loading rate dependency or hysteresis, in vivo. AT force-elongation characteristics were determined from 14 subjects in an ankle dynamometer at different loading rates using motion capture assisted ultrasonography. AT stiffness and elongation were determined between 10 – 80% of maximum voluntary contraction (MVC) force at fast and slow loading rates. As subjects were unable to consistently match the target unloading rate in the slow condition, AT hysteresis was only calculated for the fast rate. There was a significant difference between the fast and the slow loading rates: 120 ± 6 vs. 21 ± 1% of MVC sˉ¹ (mean ± standard error), respectively. However, neither stiffness (193 ± 18 N mmˉ¹ vs. 207 ± 22 N mmˉ¹) nor elongation at any force level (13.0 ± 1.2 mm vs. 14.3 ± 0.9 mm at 80% of MVC) were significantly different between the fast and slow loading rates. Tendon hysteresis at the fast rate was 5 ± 2%. As stiffness was not sensitive to loading rate and hysteresis was small, it was concluded that elastic properties prevail over viscous properties in the human AT. The current results support the idea that AT stiffness is independent of loading rate.fi
dc.language.isoeng
dc.publisherSpringerOpen
dc.relation.ispartofseriesSpringerplus
dc.relation.urihttp://www.ncbi.nlm.nih.gov/pmc/journals/2032/
dc.subject.otherhystereesifi
dc.subject.otherjäykkyysfi
dc.subject.otherjännefi
dc.subject.otherultraäänifi
dc.subject.otherHysteresisfi
dc.subject.otherLoading rate dependencyfi
dc.subject.otherMedial gastrocnemiusfi
dc.subject.otherStiffnessfi
dc.subject.otherUltrasonographyfi
dc.titleViscoelastic properties of the Achilles tendon in vivofi
dc.identifier.urnURN:NBN:fi:jyu-201312102767
dc.contributor.laitosLiikuntabiologian laitosfi
dc.contributor.laitosDepartment of Biology of Physical Activityen
dc.contributor.oppiaineBiomekaniikka
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2013-12-10T04:30:13Z
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.format.pagerange212
dc.relation.issn2193-1801
dc.relation.numberinseriesMay 8;2(1)
dc.relation.volume2
dc.type.versionpublishedVersion
dc.rights.copyright© 2013 Peltonen et al.; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttps://creativecommons.org/licenses/by/2.0/
dc.relation.doi10.1186/2193-1801-2-212


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

© 2013 Peltonen et al.; licensee Springer. 


This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Except where otherwise noted, this item's license is described as © 2013 Peltonen et al.; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.