Biomechanical loading of the shoulder complex and lumbosacral joints during dynamic cart pushing task

Details

• Personal Author:
  Hsiao H ; Jaridi M ; Nimbarte AD ; Sun Y
• Description:
  The primary objective of this study was to quantify the effect of dynamic cart pushing exertions on the biomechanical loading of shoulder and low back. Ten participants performed cart pushing tasks on flat (0 degrees), 5 degrees, and 10 degrees ramped walkways at 20 kg, 30 kg, and 40 kg weight conditions. An optoelectronic motion capturing system configured with two force plates was used for the kinematic and ground reaction force data collection. The experimental data was modeled using AnyBody modeling system to compute three-dimensional peak reaction forces at the shoulder complex (sternoclavicular, acromioclavicular, and glenohumeral) and low back (lumbosacral) joints. The main effect of walkway gradient and cart weight, and gradient by weight interaction on the biomechanical loading of shoulder complex and low back joints was statistically significant (all p < 0.001). At the lumbosacral joint, negligible loading in the mediolateral direction was observed compared to the anterioposterior and compression directions. Among the shoulder complex joints, the peak reaction forces at the acromioclavicular and glenohumeral joints were comparable and much higher than the sternoclavicular joint. Increased shear loading of the lumbosacral joint, distraction loading of glenohumeral joint and inferosuperior loading of the acromioclavicular joint may contribute to the risk of work-related low back and shoulder musculoskeletal disorder with prolonged and repetitive use of carts. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Manufacturing And Industrial Facilities Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety
• Keywords:
  Articulation Author Keywords: Pushing Biological-effects Biomechanical-modeling Biomechanical Loading Biomechanics Body-burden Body-regions Force Humans Low Back Manual-materials-handling Materials-handling Musculoskeletal-system Musculoskeletal-system-disorders Overloading Quantitative-analysis Shoulder Task-performance Weight-factors

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• ISSN:
  0003-6870
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  New Hampshire ; OSHA Region 1 ; OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DSR - Division of Safety Research
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  44
• Issue:
  5
• NIOSHTIC Number:
  nn:20042499
• Citation:
  Appl Ergon 2013 Sep; 44(5):841-849
• Contact Point Address:
  Ashish D. Nimbarte, Department of Industrial and Management Systems Engineering, PO Box 6070, West Virginia University, Morgantown, WV 26506-6107
• Email:
  Ashish.Nimbarte@mail.wvu.edu
• Federal Fiscal Year:
  2013
• NORA Priority Area:
  Construction ; Public Safety
• Performing Organization:
  West Virginia University
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Applied Ergonomics
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:efaaa22e9c8023a63d56c3e76ead4c303ccf3c023ea881ceef070b7fe6d8f89fe9562c9fc43d71cfc15d42802bc22c52b99f59e123875365667a8a89896c81a7
• Download URL:
  https://stacks.cdc.gov/view/cdc/194708/cdc_194708_DS1.pdf
• File Type:
  [PDF - 1005.66 KB ]