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Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1976

Title: Effective elastic properties for lower limb soft tissues from manual indentation experiment
Authors: Zheng, Yong-Ping
Mak, Arthur F. T.
Subjects: Young's modulus
Biological tissues
Biomechanics
Biomedical ultrasonics
Indentation
Issue Date: Sep-1999
Publisher: IEEE Engineering in Medicine and Biology Society
Citation: IEEE Transactions on Rehabilitation Engineering, Sept. 1999, v. 7, no. 3, p. 257-267.
Abstract: Quantitative assessment of the biomechanical properties of limb soft tissues has become more important during the last decade because of the introduction of computer-aided design and computer-aided manufacturing (CAD/CAM) and finite element analysis to prosthetic socket design. Because of the lack of a clinically easy-to-use apparatus, the site and posture dependences of the material properties of lower limb soft tissues have not been fully reported in the literature. In this study, an ultrasound indentation system with a pen-size handheld probe was used to obtain the indentation responses of lower limb soft tissues. Indentation tests were conducted on normal young subjects with four females and four males at four sites with three body postures. A linear elastic indentation solution was used to extract the effective Young's modulus from the indentation responses. The determined modulus ranged from 10.4 to 89.2 kPa for the soft tissues tested. These results were in a similar range as those reported in the literature. The thickness of the lower limb soft tissues varied slightly with body posture changes. The Young's modulus determined was demonstrated to be significantly dependent on site, posture, subject and gender. The overall mean modulus of male subjects was 40% larger than that of female subjects. No significant correlation was established between the effective Young's modulus and the thickness of entire soft tissue layers.
Description: DOI: 10.1109/86.788463
Rights: © 1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holders.
Type: Journal/Magazine Article
URI: http://hdl.handle.net/10397/1976
ISSN: 1063-6528
Appears in Collections:HTI Journal/Magazine Articles

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