Variation in viscoelastic properties of bovine articular cartilage below, up to and above healthy gait-relevant loading frequencies

Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
Hamid SadeghiDuncan E T Shepherd

Abstract

The aim of this study was to determine the variation in viscoelastic properties of femoral head bovine articular cartilage, on-bone, over five orders of magnitude of loading frequency. These frequencies ranged from below, up to and above healthy gait-relevant frequencies, using<1, 1-5 and 10 Hz, respectively. Dynamic mechanical analysis was used to measure storage and loss stiffness. A maximum compressive force of 36 N was applied through a chamfered-end, 5.2-mm-diameter, indenter. This induced a maximum nominal stress of 1.7 MPa. The ratio of storage to loss stiffness increased from near parity (2.5) at low frequencies to 11.4 at 10 Hz. This was the result of a significant logarithmic increase (p < 0.05) in storage stiffness with frequency, from 367 N/mm (0.001 Hz) up to 1460 N/mm (10 Hz). In contrast, the loss stiffness remained approximately constant. In conclusion, viscoelastic properties of articular cartilage measured at frequencies below those of gait activities are poor predictors of its relevant dynamic mechanical behaviour.

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Citations

Oct 8, 2016·BMC Musculoskeletal Disorders·Duncan K TempleDaniel M Espino
Jul 15, 2017·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Jonathan BaxterDaniel M Espino
Jun 9, 2019·Journal of Biomechanical Engineering·Olufunmilayo AdebayoMarjolein C H van der Meulen
Jun 25, 2019·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Seyed Shayan SajjadiniaMohammad Razi
Jan 16, 2020·Polymers·Aureliano FertuzinhosNuno Dourado
Jun 3, 2017·Annals of Biomedical Engineering·A GkousioudiL G Alexopoulos
Aug 11, 2020·Frontiers in Bioengineering and Biotechnology·Chara SimitziRichard M Day
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Nov 28, 2020·Scientific Reports·Stefano Perni, Polina Prokopovich
Feb 25, 2020·Journal of the Mechanical Behavior of Biomedical Materials·Saeed MiraminiLauren E J Thomas-Seale
Jun 19, 2019·Journal of Biomechanical Engineering·Olufunmilayo O AdebayoMarjolein C H van der Meulen
Jun 18, 2021·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Majid SiamiMousa Rezaee

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