Biomechanical loading of shoulder joints during dynamic cart pushing tasks

Details

• Personal Author:
  Hsiao H ; Jaridi M ; Nimbarte AD ; Sun Y
• Description:
  Manual handling of carts at workplaces are found to be associated with shoulder musculoskeletal disorders. It is currently unclear as to how the dynamic cart pushing tasks affect the musculoskeletal loading of shoulder complex joints. Therefore, the objective in this study was to evaluate dynamic pushing tasks to quantify their effects on the biomechanical loading of shoulder joints. Eight participants performed uphill cart pushing tasks on a flat, 5 degrees and 10 degrees ramped walkways at 20, 30, and 40 kg weight conditions. An optical motion analysis system configured with two force plates was used for data collection. The experimental data was modeled using a full-body musculoskeletal model to compute three-dimensional peak joint reaction forces acting at the sternoclavicular, acromioclavicular, and glenohumeral joints. The peak forces at the sternoclavicular joint were found to be relatively small (< 210 N) in all situations. The largest peak distraction, compression, and anterior-posterior shear forces acting at the glenohumeral joint were 1375 N, 856 N, and 619 N, respectively, during uphill pushing task on 10 degrees ramped walkway at 40 kg weight condition. Under the same conditions, the corresponding peak forces acting at the acromioclavicular joint were 909 N, 1103 N, and 740 N, respectively. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Manufacturing And Industrial Facilities Musculoskeletal Diseases Musculoskeletal System Occupational Health Safety
• Keywords:
  Articulation Author Keywords: Dynamic Pushing Biological-effects Biomechanical-modeling Biomechanical Loading Biomechanics Body-burden Body-regions Force Humans Manual-materials-handling Materials-handling Modeling Musculoskeletal-system Musculoskeletal-system-disorders Overloading Quantitative-analysis Shoulder Joints Task-performance Weight-factors

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• Publisher:
  Institute of Industrial Engineers
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Proceedings
• 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
• NIOSHTIC Number:
  nn:20044391
• Citation:
  Proceedings of the 62nd IIE Annual Conference and Expo, May 19 -23, 2012, Orlando, Florida. Lim G; Herrmann JW, eds. Norcross, GA: Institute of Industrial Engineers, 2012 May; :2899-2907
• Contact Point Address:
  Yun Sun, Keene State College, 229 Main Street, Keene, NH 03435-1901
• Editor(s):
  Lim G; Herrmann JW
• Federal Fiscal Year:
  2012
• Performing Organization:
  West Virginia University
• Peer Reviewed:
  False
• Start Date:
  20050701
• Source Full Name:
  Proceedings of the 62nd IIE Annual Conference and Expo, May 19 -23, 2012, Orlando, Florida
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c457350114683adee16cf1e28ca48d15ffcd57f83f0806bafacb749c2475d485f62655461fdcc6fe32e5cbda763f60e07482c83c4f1b73afbb47aa01f444aff9
• Download URL:
  https://stacks.cdc.gov/view/cdc/200101/cdc_200101_DS1.pdf
• File Type:
  [PDF - 639.28 KB ]