When is a lifting movement too asymmetric to identify low-back loading by 2-D analysis?
Article Abstract:
Errors introduced by using two-dimensional biological models in studying asymmetric lifting movements were estimated and compared to the results gathered from a three-dimensional model. Findings revealed an underestimation of the peak torque by 20%, 36% and 61% when the initial position of a load was rotated 30, 60 and 90 degrees with respect to the sagittal plane of the subject. The main cause of the underestimation was a pelvic twist, resulting in a wrong projection of a pelvic marker on to the sagittal plane.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 1998
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Scaling of lifting forces in relation to object size in whole body lifting
Article Abstract:
The study is conducted to find out whether lifting force overshoots related to object size cues disappear or persist over a number of repeated lifts. The result shows that for occupational lifting, risks related to force overshoots in lifting large objects can persist despite experience in lifting the objects and despite the use of labels indicating the weight of the objects.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 2005
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Load spatial pathway and spine loading: How does lift origin and destination influence low back response?
Article Abstract:
The study is conducted to investigate how the relative positions of the load origin and destination impact three-dimensional spine loads. It is concluded that the current study emphasizes the importance of well-thought-out destination location.
Publication Name: Ergonomics
Subject: Business
ISSN: 0014-0139
Year: 2005
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