Document Detail

The loads on the lumbar spine during work at an assembly line. The risks for fatigue injuries of vertebral bodies.
MedLine Citation:
PMID:  2237627     Owner:  NLM     Status:  MEDLINE    
This study was performed in an attempt to determine the total spinal compressive load during assembly line work to find a possible association with the many complaints of back pain. A flexion analyzer was used to register trunk movements, and analysis of postures and lifted weights was done from video recordings. The load on the spine at the L3 level was calculated through a biomechanical model, meant for analysis of static, sagittally symmetric postures and lifting tasks. Maximum lift tests were performed before and after a full work day. The peak load on the L3-L4 level when lifting corresponded to an average 22% of the load at the lift test. The mean load during a work cycle was 818 N. It was concluded that the many complaints of back pain could not be attributed to high peak loads, repetitivity of the lifts, or large load doses. Monotony, stress, and low job satisfaction are more likely factors of greater importance.
M Magnusson; M Granqvist; R Jonson; V Lindell; U Lundberg; L Wallin; T Hansson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Spine     Volume:  15     ISSN:  0362-2436     ISO Abbreviation:  Spine     Publication Date:  1990 Aug 
Date Detail:
Created Date:  1990-12-24     Completed Date:  1990-12-24     Revised Date:  2009-07-09    
Medline Journal Info:
Nlm Unique ID:  7610646     Medline TA:  Spine (Phila Pa 1976)     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  774-9     Citation Subset:  IM; S    
Department of Orthopaedics, Sahlgren Hospital, Gothenburg University, Sweden.
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MeSH Terms
Computer Simulation
Cumulative Trauma Disorders / epidemiology*,  etiology
Lumbar Vertebrae / injuries,  physiology*
Movement / physiology
Occupational Diseases / epidemiology*,  etiology
Risk Factors
Stress, Mechanical

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

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