Effect of load carrying on local dynamic stability

Jian Liu, Thurmon E. Lockhart, Kevin Granata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Occupational load carrying tasks are considered one of the major factors contributing to slip and fall injuries. The objective of the current study was to explore the feasibility to assess the stability changes associated with load carrying by local dynamic stability measures. Twenty-five young participants were involved in a treadmill walking study, with their trunk acceleration profiles measured wirelessly by a tri-axial accelerometer. Finite time local dynamic stability was quantified by maximum Lyapunov exponents (maxLE). The results showed a significant increase in long term maxLE in load condition, indicating the declined local dynamic stability due to the load carrying. Thus, current study confirmed the discriminative validity and sensitivity of local dynamic stability measure and its utility in the load carrying scenario.

Original languageEnglish (US)
Title of host publication51st Annual Meeting of the Human Factors and Ergonomics Society, HFES 2007
Pages909-913
Number of pages5
StatePublished - Dec 1 2007
Externally publishedYes
Event51st Annual Meeting of the Human Factors and Ergonomics Society, HFES 2007 - Baltimore, MD, United States
Duration: Oct 1 2007Oct 5 2007

Publication series

NameProceedings of the Human Factors and Ergonomics Society
Volume2
ISSN (Print)1071-1813

Other

Other51st Annual Meeting of the Human Factors and Ergonomics Society, HFES 2007
CountryUnited States
CityBaltimore, MD
Period10/1/0710/5/07

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ASJC Scopus subject areas

  • Human Factors and Ergonomics

Cite this

Liu, J., Lockhart, T. E., & Granata, K. (2007). Effect of load carrying on local dynamic stability. In 51st Annual Meeting of the Human Factors and Ergonomics Society, HFES 2007 (pp. 909-913). (Proceedings of the Human Factors and Ergonomics Society; Vol. 2).