Required coefficient of friction during turning at self-selected slow, normal, and fast walking speeds

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

This study investigated the relationship of required coefficient of friction to gait speed, obstacle height, and turning strategy as participants walked around obstacles of various heights. Ten healthy, young adults performed 90° turns around corner pylons of four different heights at their self selected normal, slow, and fast walking speeds using both step and spin turning strategies. Kinetic data was captured using force plates. Results showed peak required coefficient of friction (RCOF) at push off increased with increased speed (slow μ=0.38, normal μ=0.45, and fast μ=0.54). Obstacle height had no effect on RCOF values. The average peak RCOF for fast turning exceeded the OSHA safety guideline for static COF of μ>0.50, suggesting further research is needed into the minimum static COF to prevent slips and falls, especially around corners.

Original languageEnglish (US)
Pages (from-to)1395-1400
Number of pages6
JournalJournal of Biomechanics
Volume47
Issue number6
DOIs
StatePublished - Apr 11 2014
Externally publishedYes

Keywords

  • Biomechanics
  • Friction
  • Friction demand
  • Gait
  • RCOF
  • Required coefficient of friction
  • Slips and falls
  • Speed
  • Turning

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

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