In vivo indentation of residual limb bulk soft tissues

M. Barbara Silver-Thorn, Suzanne L. Vetrano, Arvind P. Pathak

Research output: Contribution to conferencePaperpeer-review

Abstract

In vivo rate-controlled (2, 5 and 8 mm/s) indentation tests were conducted on the soft tissues of the residual limb of four individuals with trans-tibial amputation. Force relaxation trials were also conducted. The cyclic in vivo indentation tests indicated that the bulk soft tissue response to compressive load is nonlinear and, for the indentation rates tested, nearly independent of the loading rate. Significant inter- and intra-subject stiffness variations were observed. The force relaxation studies indicated that approximately 80% relaxation may occur; the relaxation time constants (Kelvin model) ranged from 150 to 300 seconds. Additional subject trials are currently being conducted.

Original languageEnglish (US)
Pages595-596
Number of pages2
StatePublished - Jan 1 1997
Externally publishedYes
EventProceedings of the 1997 Bioengineering Conference - Sunriver, OR, USA
Duration: Jun 11 1997Jun 15 1997

Other

OtherProceedings of the 1997 Bioengineering Conference
CitySunriver, OR, USA
Period6/11/976/15/97

ASJC Scopus subject areas

  • Engineering(all)

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