Aging effect on initial postural responses of unperturbed foot to unexpected slips

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

1 Scopus citations

Abstract

Consideration of every aspects of body motion that may contribute to balance recovery after unexpected slips is regarded to be fundamental for thorough understanding of slips and falls mechanism. The objective of current study was to assess the aging effect on the initial postural responses of the unperturbed foot after slip initiation. Totally 20 young and 23 old adults participated in a laboratory study, in which slippery surface was induced without their awareness. Unperturbed foot reaction time, contact velocity, and initial BoS (base of support) were quantified kinematically from motion analysis data after slip start. Apparent toe-touch strategy by unperturbed foot was found to be employed by most individuals. Initial contact dynamics was not found to be affected by either aging or slip outcome. The fact that all the individuals without using toe-touch strategy fell demonstrated the clear importance of unperturbed foot responses to avoid fall accidents.

Original languageEnglish (US)
Title of host publicationProceedings of the Human Factors and Ergonomics Society 50th Annual Meeting, HFES 2006
Pages1341-1345
Number of pages5
StatePublished - Dec 1 2006
Externally publishedYes
Event50th Annual Meeting of the Human Factors and Ergonomics Society, HFES 2006 - San Francisco, CA, United States
Duration: Oct 16 2006Oct 20 2006

Publication series

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

Other

Other50th Annual Meeting of the Human Factors and Ergonomics Society, HFES 2006
CountryUnited States
CitySan Francisco, CA
Period10/16/0610/20/06

ASJC Scopus subject areas

  • Human Factors and Ergonomics

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  • Cite this

    Liu, J., & Lockhart, T. E. (2006). Aging effect on initial postural responses of unperturbed foot to unexpected slips. In Proceedings of the Human Factors and Ergonomics Society 50th Annual Meeting, HFES 2006 (pp. 1341-1345). (Proceedings of the Human Factors and Ergonomics Society).