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Nonlinear Effects of Bone Damping on Human Postural Balance

[+] Author Affiliations
Amit Shukla

Miami University, Oxford, OH

Amit Bhattacharya

University of Cincinnati, Cincinnati, OH

Paper No. DETC2015-46886, pp. V006T10A005; 6 pages
doi:10.1115/DETC2015-46886
From:
  • ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 6: 11th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
  • Boston, Massachusetts, USA, August 2–5, 2015
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5716-8
  • Copyright © 2015 by ASME

abstract

Osteoporosis is a common disease in women over the age of 50. The detection of this disease is done by an expensive bone mineral density test using dual energy x-ray absorpiometry. Osteoporosis patients are at a high risk of bone fracture under daily living conditions. Previous studies have shown that natural shock absorption capability of human body suffering from osteoporosis is significantly impaired.

This study is to develop an understanding of nonlinear effects of osteoporosis on human postural balance via computational models developed to capture changes in the shock absorption capabilities of human musculoskeletal system in osteoporosis patients. This paper uses a previously published, time delayed model of human postural balance by simulating the effect of osteoporosis via changes in damping factor. Numerical studies are presented and results interpreted to capture and highlight the nonlinear effects of osteoporosis on the dynamics postural balance response. This approach, upon further clinical evaluation can result in utilization of human postural balance test and the corresponding non-invasive Bone Shock Absorption test and measurement techniques for detection of osteoporosis.

Copyright © 2015 by ASME
Topics: Bone , Damping

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