Document Detail


The effect of different surfaces on biomechanical loading of shoulder and lumbar spine during pushing and pulling of two-wheeled containers.
MedLine Citation:
PMID:  12009123     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Seven waste collectors pushed and pulled a two-wheeled container on three different surfaces: flagstones, paving stones, grass. Net torques at the shoulder joint and the lumbar spine as well as the compression and shear forces in the lumbar spine at the L4/L5 level were calculated for the tilting, initial and sustained phases. The lumbar spine compression force was below 1800N and the shear force was below 200 N in all situations. The shoulder torque when pulling with one hand was up to 80 N m. The container weight affected the magnitude of the push/pull forces and the load on the shoulders but not the load on the lumbar spine. The type of surface affected the magnitude of the push/pull forces during initial and sustained phases, and affected the load on the shoulder in the sustained phase. However, it did not affect the compression in the lumbar spine.
Authors:
Bjarne Laursen; Bente Schibye
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Applied ergonomics     Volume:  33     ISSN:  0003-6870     ISO Abbreviation:  Appl Ergon     Publication Date:  2002 Mar 
Date Detail:
Created Date:  2002-05-14     Completed Date:  2002-11-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0261412     Medline TA:  Appl Ergon     Country:  England    
Other Details:
Languages:  eng     Pagination:  167-74     Citation Subset:  IM    
Affiliation:
National Institute of Public Health, Copenhagen, Denmark.
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MeSH Terms
Descriptor/Qualifier:
Adult
Analysis of Variance
Biomechanics
Humans
Lumbar Vertebrae / physiology*
Male
Muscle, Skeletal / physiology
Musculoskeletal Diseases / prevention & control*
Occupational Diseases / prevention & control*
Shoulder Joint / physiology*
Surface Properties
Task Performance and Analysis
Videotape Recording
Weight-Bearing / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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