Manual Material Handling Guidelines for the Shoulder: Biomechanical Support for the Liberty Mutual Tables as Developed by Snook and Ciriello

Details

• Personal Author:
  Bloswick, Donald S. ; Merryweather, Andrew S. ; Steele, Travis
• Description:
  Stover Snook and Vincent Ciriello laid the groundwork for psychophysical material handling guidelines in the 1970s. Since then, further research into psychophysical guidelines has been performed by numerous researchers. However, there still exists a gap between psychophysical and biomechanical guidelines. Snook and Ciriello's work eventually led to development of the Liberty Mutual Tables to reduce low-back pain episode in workers due to MMH tasks. Epidemiological evidence indicates pushing tasks may be more related to shoulder pain than low-back pain. A novel approach to protecting worker's shoulder complex by comparing the Liberty Mutual Table guidelines for pushing tasks to biomechanically derived pushing guidelines is presented. These biomechanically derived guidelines are based on muscle activation levels of the subscapularis muscle as determined using a biomechanical model of the shoulder complex. The subscapularis muscle may be a marker for subacromial impingement syndrome. In general, the psychophysical guidelines and the biomechanical guidelines achieve general agreement with respect to magnitude and shape. Differences between the two models range from 6 to 67%. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Ergonomics Musculoskeletal System Occupational Health Safety
• Keywords:
  Author Keywords: Computational Study Biomechanics Body Mechanics Computerized Simulation Guidelines Human Factors Injury Risk Manual Materials Handling Modelling Muscle Function Pushing Shoulder Shoulder Muscle Forces Simulation Stress Determination

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• ISSN:
  0169-8141
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 8 ; Utah
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  6 pdf pages
• Volume:
  44
• NIOSHTIC Number:
  nn:20067392
• Citation:
  Int J Ind Ergon 2014 Mar; 44(2):275-280
• Contact Point Address:
  Travis Steele, University of Utah, Mechanical Engineering, Merrill Engineering Building, 50 S. Central Campus Dr. Room 2110, Salt Lake City, UT 84112, USA
• Email:
  Travis.Steele3@gmail.com
• Federal Fiscal Year:
  2014
• Performing Organization:
  University of Utah
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  International Journal of Industrial Ergonomics
• End Date:
  20280630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:95923588c3f8137b13db2f80f0939776c8571fb290dd748611ca588f83ab54005d417be11f9f22756ddfffbc6af11700820d6596e3cc8783327913f0b58eac66
• Download URL:
  https://stacks.cdc.gov/view/cdc/230763/cdc_230763_DS1.pdf
• File Type:
  [PDF - 618.48 KB ]