The Load on the Lumbar Spine During Isometric Strength Testing

Details

• Personal Author:
  Bigos SJ ; Hansson TH ; Spengler DM ; Wortley MK
• Description:
  Reports of back discomfort and even back injuries during isometric strength testing in specific lifting positions indicated an analysis of the loads on the lumbar spine during this type of testing. A biomechanical analysis, which has been validated against EMG and intravital disc pressure measurements, was used for the calculations of the loads in four test persons. The calculations indicated compressive loads on L3 ranging from 5000-11,000 N during squat and torso lifting. Such loads in vitro have been found to cause structural failures of the vertebral endplates. Similar loads also may result in damage to the spine in vivo. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety
• Keywords:
  Author Keywords: Low-back Pain Back Injuries Biomechanics Lifting Low Back Pain Muscle Function Musculoskeletal System Posture Spinal Loading Strength Testing
• ISSN:
  0362-2436
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 10 ; Washington
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  9
• Issue:
  7
• NIOSHTIC Number:
  nn:20060601
• Citation:
  Spine 1984 Oct; 9(7):720-724
• Contact Point Address:
  Tommy Hansson, MD, Department of Orthopaedic Surgery I, University of Giiteborg, Sahlgren Hospital, Goteborg, Sweden, S-413-45
• Federal Fiscal Year:
  1985
• Performing Organization:
  University of Washington, Seattle, Washington
• Peer Reviewed:
  False
• Start Date:
  19800401
• Source Full Name:
  Spine
• End Date:
  19870331
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:ea1ee7262520c4edd4d03734ff0550fe20ece89af921e7786b47e202f2c266f8ae166172db764c5ff733dfdf97b30d324f2be182bfe699ab43b97383ee3f0c7e
• Download URL:
  https://stacks.cdc.gov/view/cdc/224461/cdc_224461_DS1.pdf
• File Type:
  [PDF - 442.88 KB ]