Prediction of peak back compressive forces as a function of lifting speed and compressive forces at lift origin and destination - a pilot study

Details

• Personal Author:
  Bloswick, Donald S. ; Greenland KO ; Merryweather AS
• Description:
  OBJECTIVES: To determine the feasibility of predicting static and dynamic peak back-compressive forces based on (1) static back compressive force values at the lift origin and destination and (2) lifting speed. METHODS: Ten male subjects performed symmetric mid-sagittal floor-to-shoulder, floor-to-waist, and waist-to-shoulder lifts at three different speeds (slow, medium, and fast), and with two different loads (light and heavy). Two-dimensional kinematics and kinetics were captured. Linear regression analyses were used to develop prediction equations, the amount of predictability, and significance for static and dynamic peak back-compressive forces based on a static origin and destination average (SODA) back-compressive force. RESULTS: Static and dynamic peak back-compressive forces were highly predicted by the SODA, with R(2) values ranging from 0.830 to 0.947. Slopes were significantly different between slow and fast lifting speeds (p < 0.05) for the dynamic peak prediction equations. The slope of the regression line for static prediction was significantly greater than one with a significant positive intercept value. CONCLUSION: SODA under-predict both static and dynamic peak back-compressive force values. Peak values are highly predictable and could be readily determined using back-compressive force assessments at the origin and destination of a lifting task. This could be valuable for enhancing job design and analysis in the workplace and for large-scale studies where a full analysis of each lifting task is not feasible. [Description provided by NIOSH]
• Subjects:
  Engineering Geology Mining Occupational Health Safety
• Keywords:
  Analytical-models Analytical-processes Author Keywords: Lifting Back-injuries Biomechanics Body-burden Body-mechanics Body-regions Cumulative-trauma Force Kinetics Linear Models Manual-lifting Manual-materials-handling Mathematical-models Men Musculoskeletal-system Overloading Physiological-effects Physiological-measurements Risk-analysis Risk-factors Risk Assessment Task-performance Workplace

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• ISSN:
  2093-7911
• 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:
  236-242
• Volume:
  2
• Issue:
  3
• NIOSHTIC Number:
  nn:20043183
• Citation:
  Saf Health Work 2011 Sep; 2(3):236-242
• Contact Point Address:
  Donald S. Bloswick, Department of Mechanical Engineering, University of Utah, 50 S Central Campus Dr, Rm 2110, Salt Lake City, UT 84112
• Email:
  bloswick@eng.utah.edu
• Federal Fiscal Year:
  2011
• Performing Organization:
  University of Utah
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Safety and Health at Work
• End Date:
  20280630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:616deeac3e0a19063b8dc8a745760cae046fabf33c79319c58985a1e2e4f82f9360fc281039e36153c829b1247050c7aefc8483fdcabd555a70cae678d5a082d
• Download URL:
  https://stacks.cdc.gov/view/cdc/195168/cdc_195168_DS1.pdf
• File Type:
  [PDF - 459.89 KB ]