Age-Related Differences in the Timing Aspect of Lumbopelvic Rhythm During Trunk Motion in the Sagittal Plane

Details

• Personal Author:
  Bazrgari B ; Shojaei I ; Vazirian M
• Description:
  Forward bending and backward return of the human trunk in the sagittal plane are associated with a specific lumbopelvic rhythm, which consists of magnitude and timing aspects. In this study, the age-related differences in the timing aspect of lumbopelvic rhythm were investigated using the continuous relative phase method. Specifically, the mean absolute relative phase (MARP) between the thoracic and pelvic motions as well as variation in MARP under repetitive motions, denoted by deviation phase (DP), were characterized in sixty participants between 20 and 70 years old. MARP and DP were determined for trunk forward bending and backward return tasks with self-selected slow and fast paces. The MARP and DP were both smaller (p = 0.003, p < 0.001 respectively) in the older versus younger age participants with no gender-related difference. In fast versus slow pace task, the MARP was smaller (p < 0.001) only in forward bending, whereas the DP was smaller (p < 0.001) in both the forward bending and backward return. A more in-phase and more stable lumbopelvic rhythm denoted respectively by smaller MARP and DP in older versus younger individuals maybe a neuromuscular strategy to protect the lower back tissues from excessive strain, in order to reduce the risk of injury. [Description provided by NIOSH]
• Subjects:
  Computers Mining Occupational Health Safety
• Keywords:
  Age Factors Author Keywords: Lumbar Spine Back Injuries Biomechanics Continuous Relative Phase Deviation Phase Kinesiology Low Back Disorders Lumbopelvic Rhythm Mean Absolute Relative Phase MSD Muscle Function Musculoskeletal Disorders Neuromuscular Function Pelvis

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• ISSN:
  0167-9457
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Kentucky ; OSHA Region 4
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-8
• Volume:
  51
• NIOSHTIC Number:
  nn:20053554
• Citation:
  Hum Mov Sci 2017 Jan; 51:1-8
• Contact Point Address:
  Babak Bazrgari, Department of Biomedical Engineering, University of Kentucky, 514E Robotic and Manufacturing Building, Lexington, KY 40506, USA
• Email:
  babak.bazrgari@uky.edu
• Federal Fiscal Year:
  2017
• Performing Organization:
  University of Kentucky
• Peer Reviewed:
  True
• Start Date:
  20120701
• Source Full Name:
  Human Movement Science
• End Date:
  20150630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0f5faa8d26e719caf3bbff92436fe75040a7526fe316733bea0b008277e0fb4811347e47988e15f1730d969d908b24735e89ff79fa4ed5ded44e527f2043d626
• Download URL:
  https://stacks.cdc.gov/view/cdc/216285/cdc_216285_DS1.pdf
• File Type:
  [PDF - 1.27 MB ]