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Hand-hold location and trunk kinematics during box handling
  • Omid Haddad, Iowa State University
  • Gary Mirka, Iowa State University
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Publication Version
Accepted Manuscript
Publication Date
Trunk kinematics variables have been shown to be related to low back injury risk during lifting tasks and it was hypothesised that changes in hand-hold positions could influence trunk kinematics and thereby risk. Fourteen subjects lifted a 5 or 10 kg box using four different hand placement locations (two symmetric and two asymmetric) while their trunk kinematics (position, velocity and acceleration in the sagittal, coronal and transverse planes) were captured using the lumbar motion monitor (LMM). These kinematics data were then used to calculate the probability of high risk group membership (PHRGM) as defined in the LMM risk assessment model. The results showed significant effects of hand placement on trunk kinematics, resulting in significant changes in the PHRGM variable ranging from a low of 20% in a the symmetric low load condition to a high of 38% under the asymmetric, 10 kg condition.

This is a manuscript of an article published as Haddad, Omid, and Gary A. Mirka. "Hand-hold location and trunk kinematics during box handling." Ergonomics 53, no. 8 (2010): 1033-1038. doi: 10.1080/00140139.2010.494458. Posted with permission.

Copyright Owner
Taylor & Francis
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Citation Information
Omid Haddad and Gary Mirka. "Hand-hold location and trunk kinematics during box handling" Ergonomics Vol. 53 Iss. 8 (2010) p. 1033 - 1038
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