Lifting Performed on Laterally Slanted Ground Surfaces

Details

• Personal Author:
  Freeman J ; Jiang Z ; Mirka GA ; Reid S ; Shin G
• Description:
  Many outdoor work environments (e.g. agriculture and construction) require manual material handling activities on variable grade ground surfaces. Quantifying biomechanical responses for lifting under these conditions may provide insight into the etiology of lifting-related injuries. The aim of the current study was to quantify the effect of laterally slanted ground surfaces on biomechanical responses. Ten subjects performed lifting exertions (using a 40% of max load) while standing on a platform that was laterally tilted at 0, 10, 20 and 30 degrees from horizontal. During the lifting tasks the whole body kinematics were collected, which were later used in a dynamic biomechanical model to calculate the time-dependent moment about L5/S1 and the time-dependent lateral forces acting on the body segments. The results showed a consistent reduction in the peak dynamic L5/S1 moment (decreased by 9%) and an increase in the lateral forces (increased by 111%) with increasing slant angle. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Ergonomics Occupational Health Safety
• Keywords:
  Biomechanical Modeling Biomechanics Lifting Manual Materials Handling Outdoor Workers Walking Surfaces
• ISSN:
  1071-1813
• Publisher:
  Human Factors and Ergonomics Society
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Proceedings
• Place as Subject:
  Florida ; North Carolina ; OSHA Region 4
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  49
• Issue:
  14
• NIOSHTIC Number:
  nn:20062050
• Citation:
  Proceedings of the Human Factors and Ergonomics Society 49th Annual Meeting, September 26-30, 2005, Orlando, Florida. Santa Monica, CA: Human Factors and Ergonomics Society, 2005 Sep; 49(14):1325-1329
• Federal Fiscal Year:
  2005
• Performing Organization:
  East Carolina University
• Peer Reviewed:
  True
• Start Date:
  20010930
• Source Full Name:
  Proceedings of the Human Factors and Ergonomics Society 49th Annual Meeting, September 26-30, 2005, Orlando, Florida
• End Date:
  20080929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:eb225520f8151d45a150cf335f01d57df7a7b40ae9fab8a9230f3cb6cdc40493644da8959d1a9f8c261d85699387cbb364db749e3bbfeac43f76fbcbe16ea112
• Download URL:
  https://stacks.cdc.gov/view/cdc/225370/cdc_225370_DS1.pdf
• File Type:
  [PDF - 71.33 KB ]