The effect of pallet distance on torso kinematics and low back disorder risk
Jorgensen, Michael J. Handa, Amit Veluswamy, Prabaharan Bhatt, Manish
Jorgensen, Michael J.
Handa, Amit
Veluswamy, Prabaharan
Bhatt, Manish
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Issue Date
2005-06
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Article
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Citation
Ergonomics. 2005 Jun 22; 48(8): 949-63.
Abstract
Intervention research for prevention of occupational low back injuries has focused on the effects of reducing extreme torso flexion and the external moment. Little is known about prevention strategies for torso twisting and lateral bending. The objective of this study was to assess the effect of pallet distance with regard to a constant lift origin on the torso kinematics and a measure of low back disorder risk. Fifteen male participants transferred 11.3 kg boxes from a constant origin to six different regions on a pallet. Two pallet distances with regard to the lift origin were investigated. ANOVA indicated that increasing the pallet distance resulted in increases in torso kinematics (velocities and accelerations) as well as a measure of risk of low back disorder. The increases in torso kinematics (e.g. twisting and lateral awkward postures and bending velocities) occurred mostly at the lower height regions on the pallet. It is concluded that increasing the pallet distance with regard to the lifting origin, with the intention to influence the participant to take a step during a palletizing task does not appear to be an effective intervention strategy to reduce the risk of low back disorder associated with torso kinematics.
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The full text of this article is not available in SOAR. WSU users can access the article via commercial databases licensed by University Libraries: http://libcat.wichita.edu/vwebv/holdingsInfo?bibId=1325351. The DOI link of this article is: http://dx.doi.org/10.1080/00140130500182007.
Publisher
Taylor & Francis
Journal
Ergonomics
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ISSN
0014-0139