PMID: 10831807Jun 1, 2000Paper

Strategies of load tilts and shoulders positioning in asymmetrical lifting. A concomitant evaluation of the reference systems of axes

Clinical Biomechanics
M GagnonPierre Desjardins

Abstract

To evaluate two handling factors on asymmetry of posture and efforts and to evaluate different reference systems of axes on the characterization of asymmetry.DESIGN. Ten novice workers performed three tasks evaluated for the effects of load tilting (tilts vs no tilts) and shoulders positioning (non-parallel vs parallel to the ground). Specific comparisons were made using three referential systems.BACKGROUND. Box handgrips/tilting and body posture are factors differentiating expert and novice workers which present a potential for reducing asymmetries. The literature also suggests that different conclusions may be reached about asymmetry with different systems of axes.METHODS. Net 3D moments at L5/S1 were obtained from two force platforms, four video cameras and inverse dynamic analyses using three reference systems of axes (trunk, pelvis, and joint).RESULTS. Tilting the load presented clear advantages of reducing the duration and trajectory of efforts, better positioning the load and reducing knee flexion, peak trunk extensors and mechanical work on the load. The maintenance of the shoulders parallel reduced asymmetries of posture and efforts but the results were affected by the type of reference system of axes chosen.CONCLUSION...Continue Reading

References

Oct 1, 1992·Baillière's Clinical Rheumatology·M L Skovron
Jul 1, 1985·Spine·M A Adams, W C Hutton
Jan 1, 1984·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·J L KelseyJ A Calogero
Apr 1, 1983·Spine·M A Adams, W C Hutton
May 1, 1983·Journal of Biomechanical Engineering·E S Grood, W J Suntay
Mar 1, 1995·Current Opinion in Rheumatology·D Borenstein
Sep 1, 1993·Spine·D S McNallyA E Goodship
Oct 1, 1995·Journal of Biomechanics·G Wu, P R Cavanagh
Sep 1, 1996·Journal of Biomechanics·P de Leva

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Citations

Oct 3, 2006·Gait & Posture·Anthony G Schache, Richard Baker
Aug 3, 2016·Ergonomics·Helen Cristina NogueiraAna Beatriz Oliveira
Jul 27, 2010·Ergonomics·Omid Haddad, Gary A Mirka
Feb 11, 2014·Journal of Biomechanical Engineering·Raphaël Dumas, Laurence Cheze
Nov 2, 2005·Journal of Applied Biomechanics·Yu ShuGary A Mirka

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