Evaluation of Postural Stability Associated to Lifting/Lowering Motions

Abstract:

A series of working situations involving lifting, transport and setting (lowering) motions represent the main dynamic biomechanical action of the human body and will be presented and analyzed in this paper. In these situations, the bipodal stability, as well as the manner of handling objects, the shape, weight and quality of these objects may determine some posture issues leading finally to occurrence, development and/or emphasis of muscular-skeletal system pathologies. Some aspects related to structural analysis, standard settings and other types of analysis performed upon lifting/lowering motion are presented in the first part of the paper. We presented in the second part of the paper the experimental system used for analyzing the lifting and handling some objects with weights between 1 10kg by analysis of postural stability and correlation with forces and moments developed by the human body during the action. The results of this analysis and also the conclusions upon the determinations of values for NIOSH equation (National Institute for Occupational Safety and Health) as a tool for stress evaluation associated with objects lifting/lowering motions using both hands are presented in the final part of the paper.

• Periodical: Applied Mechanics and Materials (Volume 555)
• Pages: 646-651
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.555.646
• Online since: June 2014
• Authors: Mihaela Ioana Baritz*, Laura Diana Cotoros
• Keywords: Biomechanics, Lifting Movements, Postural Stability

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