Elastic- and viscous-like property of the upper arm estimated by the pushing method

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Abstract

The purpose of this study is to estimate the elastic- and viscous-like properties of the human upper arm using the pushing method. Healthy male subjects put their upper arms horizontally on a table. Their arms were fixed to the table with tapes. An indenter was placed 1-2 mm over the upper arm. When the indenter was moved vertically with a robot arm, the displacement y of the indenter and the force f was measured. The relationship between the displacement y and the force f was modeled with an elastic component, a viscous component and the friction of the indenter using the simplex method. In our model, an elastic coefficient k and a viscous coefficient d are expressed with a polynomials of the indentation depth x. The elastic coefficient and the viscous coefficient were well modeled with the third and the first order polynomials of the depth, respectively. The relationship between the elastic coefficient and the depth were independent of the indentation velocity. However, the viscous coefficient decreased with increasing indentation velocity.

Original languageEnglish
Number of pages1
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume1
Publication statusPublished - 2000 Dec 1
Event22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Chicago, IL, United States
Duration: 2000 Jul 232000 Jul 28

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Keywords

  • Elasticity
  • Hardness
  • Viscosity

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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