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Thorpe, Chavaunne T., Riley, Graham P. 
ORCID: https://orcid.org/0000-0001-5528-5611, Birch, Helen L., Clegg, Peter D. and Screen, Hazel R. C.
(2016)
Fascicles and the interfascicular matrix show adaptation for fatigue resistance in energy storing tendons.
Acta Biomaterialia, 42.
308–315.
ISSN 1742-7061
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Abstract
Tendon is composed of rope-like fascicles, bound together by interfascicular matrix (IFM). Our previous work shows that the IFM is critical for tendon function, facilitating sliding between fascicles to allow tendons to stretch. This function is particularly important in energy storing tendons, which experience extremely high strains during exercise, and therefore require the capacity for considerable inter-fascicular sliding and recoil. This capacity is not required in positional tendons. Whilst we have previously described the quasi-static properties of the IFM, the fatigue resistance of the IFM in functionally distinct tendons remains unknown. We therefore tested the hypothesis that fascicles and IFM in the energy storing equine superficial digital flexor tendon (SDFT) are more fatigue resistant than those in the positional common digital extensor tendon (CDET). Fascicles and IFM from both tendon types were subjected to cyclic fatigue testing until failure, and mechanical properties were calculated. The results demonstrated that both fascicles and IFM from the energy storing SDFT were able to resist a greater number of cycles before failure than those from the positional CDET. Further, SDFT fascicles and IFM exhibited less hysteresis over the course of testing than their counterparts in the CDET. This is the first study to assess the fatigue resistance of the IFM, demonstrating that IFM has a functional role within tendon and contributes significantly to tendon mechanical properties. These data provide important advances into fully characterising tendon structure-function relationships.
| Item Type: | Article |
|---|---|
| Additional Information: | This article is available under the terms of the Creative Commons Attribution License (CC BY). You may copy and distribute the article, create extracts, abstracts and new works from the article, alter and revise the article, text or data mine the article and otherwise reuse the article commercially (including reuse and/or resale of the article) without permission from Elsevier. You must give appropriate credit to the original work, together with a link to the formal publication through the relevant DOI and a link to the Creative Commons user license above. You must indicate if any changes are made but not in any way that suggests the licensor endorses you or your use of the work. |
| Uncontrolled Keywords: | tendon,fascicle,interfascicular matrix,mechanical testing,fatigue resistance,creep |
| Faculty \ School: | Faculty of Science > School of Biological Sciences |
| UEA Research Groups: | Faculty of Science > Research Groups > Cells and Tissues Faculty of Medicine and Health Sciences > Research Groups > Musculoskeletal Medicine |
| Depositing User: | Pure Connector |
| Date Deposited: | 13 Jun 2016 12:04 |
| Last Modified: | 04 Sep 2023 00:42 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/59309 |
| DOI: | 10.1016/j.actbio.2016.06.012 |
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