Disturbances to Intrinsic Stiffness and Reflexive Muscle Responses Following Prolonged Trunk Flexion

Details

• Personal Author:
  Bazrgari B ; Hendershot B ; Madigan ML ; Muslim K ; Nussbaum MA ; Toosizadeh N
• Description:
  Prolonged trunk flexion is associated with an increased risk of low back disorders (LBDs). Prolonged trunk flexion reduces passive support of the spine due to creep of viscoelastic structures. Ideally, the neuromuscular system detects such alterations and compensates with appropriate and effective muscle activation. Efficient control of muscle activation (i.e., to achieve equilibrium and stability requirements of the trunk) is imperative for avoiding LBDs. Hence, understanding normal and/or disturbed trunk neuromuscular behavior is needed for prevention, treatment, and rehabilitation of LBDs. The goal of this study was to quantify alterations in trunk neuromuscular behaviors induced by prolonged trunk flexion. More specifically, the effects of angle and duration on trunk stiffness and reflex response were investigated. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety
• Keywords:
  Biomechanics Low Back Disorders Low Back Pain MSD Muscle Function 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:
  72
• NIOSHTIC Number:
  nn:20059652
• 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; :72
• Contact Point Address:
  Maury A. Nussbaum, Virginia Tech, 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-512:8a7e00322bd1ff5722e606efa75ad1412bc4cb2c8775ccfa554170b02750a1e1dd72cb9d6dd0842121998c92f02e5c0bdb4043206f52d15353036722186086e7
• Download URL:
  https://stacks.cdc.gov/view/cdc/223802/cdc_223802_DS1.pdf
• File Type:
  [PDF - 267.30 KB ]