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The viscoelastic responses of the human cervical spine in torsion: experimental limitations of quasi-linear theory, and a method for reducing these effects.

Publication ,  Journal Article
Myers, BS; McElhaney, JH; Doherty, BJ
Published in: Journal of biomechanics
January 1991

The dynamic torsional viscoelastic responses of the human cadaver cervical spine were measured in vitro. The quasi-linear formulation of time dependent behavior was used to describe and predict the resultant torque as a function of applied angular deflection and time. The performance of the quasi-linear model was good, reaching correlation at the 99% confidence level; however, it tended to underestimate hysteresis energy (mean relative deviation = -19.1%) and observed stiffness. This was in part due to difficulties in establishing the physical constants of the quasi-linear model from finite rate relaxation testing. An extrapolation deconvolution technique to enhance the experimentally derived constants was developed, to reduce the detrimental effects of finite rate testing. The quasi-linear model based on this enhanced derivation showed improved predictive ability and hysteresis energy determination.

Duke Scholars

Published In

Journal of biomechanics

DOI

EISSN

1873-2380

ISSN

0021-9290

Publication Date

January 1991

Volume

24

Issue

9

Start / End Page

811 / 817

Related Subject Headings

  • Weight-Bearing
  • Torsion Abnormality
  • Models, Theoretical
  • Humans
  • Elasticity
  • Computer Simulation
  • Cervical Vertebrae
  • Biomedical Engineering
  • Biomechanical Phenomena
  • 4207 Sports science and exercise
 

Citation

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Myers, B. S., McElhaney, J. H., & Doherty, B. J. (1991). The viscoelastic responses of the human cervical spine in torsion: experimental limitations of quasi-linear theory, and a method for reducing these effects. Journal of Biomechanics, 24(9), 811–817. https://doi.org/10.1016/0021-9290(91)90306-8
Myers, B. S., J. H. McElhaney, and B. J. Doherty. “The viscoelastic responses of the human cervical spine in torsion: experimental limitations of quasi-linear theory, and a method for reducing these effects.Journal of Biomechanics 24, no. 9 (January 1991): 811–17. https://doi.org/10.1016/0021-9290(91)90306-8.
Myers, B. S., et al. “The viscoelastic responses of the human cervical spine in torsion: experimental limitations of quasi-linear theory, and a method for reducing these effects.Journal of Biomechanics, vol. 24, no. 9, Jan. 1991, pp. 811–17. Epmc, doi:10.1016/0021-9290(91)90306-8.
Journal cover image

Published In

Journal of biomechanics

DOI

EISSN

1873-2380

ISSN

0021-9290

Publication Date

January 1991

Volume

24

Issue

9

Start / End Page

811 / 817

Related Subject Headings

  • Weight-Bearing
  • Torsion Abnormality
  • Models, Theoretical
  • Humans
  • Elasticity
  • Computer Simulation
  • Cervical Vertebrae
  • Biomedical Engineering
  • Biomechanical Phenomena
  • 4207 Sports science and exercise