Effects of Experimental Setup and Modeling Assumptions on Predicted Trunk Properties Using a System Identification Method

Details

• Personal Author:
  Bazrgari B ; Madigan ML ; Nussbaum MA
• Description:
  System identification methods have been used to estimate trunk mechanical properties (i.e., mass, stiffness, and damping) during sudden loading paradigms, as indirect measures of trunk neuromuscular control and to obtain information relevant to understanding and controlling low back pain. Despite an apparent sensitivity of these properties to several intrinsic and extrinsic factors, reported values have exhibited a wide range. Such discrepancies may arise from sensitivities to experimental setup and modeling approaches. To address these issues, the present study investigated how trunk mechanical properties predicted with a system identification method are affected by: 1) positioning of the motion sensor; and 2) mechanical properties of elements between the trunk and the perturbing device (i.e., connecting rod, load cell, harness, and soft tissue below the harness). [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety
• Keywords:
  Biomechanical Modeling Biomechanics Low Back Disorders Low Back Pain MSD Musculoskeletal Disorders Neuromuscular Function
• Publisher:
  American Society of Biomechanics
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Abstract or Summary
• Place as Subject:
  OSHA Region 3 ; Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  44
• NIOSHTIC Number:
  nn:20059649
• Citation:
  Proceedings of the 34th Annual Meeting of the American Society of Biomechanics, August 18-21, 2010, Providence, Rhode Island. Newark, DE: The American Society of Biomechanics, 2010 Aug; :44
• Contact Point Address:
  Maury A. Nussbaum, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
• Email:
  nussbaum@vt.edu
• Federal Fiscal Year:
  2010
• Performing Organization:
  Virginia Polytechnic Institute and State University
• Peer Reviewed:
  False
• Start Date:
  20060801
• Source Full Name:
  Proceedings of the 34th Annual Meeting of the American Society of Biomechanics, August 18-21, 2010, Providence, Rhode Island
• End Date:
  20120731
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:83ded4e1c561d705c802d74611760ed3bcbaf5bcdfaf3b88daff1a878948fe2dd3b1e75a86a3fb617280ac80352fb2f515efc70b978253ebd3a824a010806948
• Download URL:
  https://stacks.cdc.gov/view/cdc/223799/cdc_223799_DS1.pdf
• File Type:
  [PDF - 68.56 KB ]