NDLI: An Anatomically Based Finite Element Model of the Lower Limbs in the Seated Posture

Content Provider	IEEE Xplore Digital Library
Author	Cox, S.L. Mithraratne, K. Smith, N.P.
Copyright Year	2007
Description	Author affiliation: Univ. of Auckland, Auckland (Cox, S.L.; Mithraratne, K.)
Abstract	In this study an anatomically accurate 3D Finite Element (FE) model of the lower limbs was developed from axial cryosection images of the Visible Man (VM). The relative position of the lower limbs of a subject in standing and sitting positions was acquired with a laser scanner. A subset of these data points were used as control points in a novel application of the Host Mesh Fitting (HMF) technique, where the generic model geometry was morphed to subject data in the standing position, and then this subject-specific model was articulated to the seated posture. The gluteus maximus muscle and a portion of the skin mesh of the customised model were selected to provide a framework with which to examine the mechanics of sitting. Passive material properties were taken from the literature and were implemented in two two-parameter Mooney-Rivlin models to assess the response of the anatomical models to applied forces and pressures. The average deformation of the skin mesh was 0.77plusmn1.525 mm which resulted in a maximum von Mises stress of 3.98 kPa. The average deformation of the gluteus maximus mesh was 2.69 plusmn 0.6 mm which produced a maximum von Mises stress of 43 kPa. The results of the von Mises stress distribution support the theory that the highest stress occurs in the region immediately beneath the ischial tuberosities. The results of this research confirm previous conclusions reached using geometrically less complex models and the application of customisation to non linear mechanics provides a novel avenue to quantitatively assess office chair design and to analyse the mechanics of sitting.
Starting Page	6326
Ending Page	6329
File Size	1661044
Page Count	4
File Format	PDF
ISBN	9781424407873
ISSN	1557170X
DOI	10.1109/IEMBS.2007.4353802
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-22
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Finite element methods Muscles Virtual manufacturing Solid modeling Stress Skin Clouds Biomedical engineering Geometry Fitting
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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