title: Asymmetrical slip propensity: required coefficient of friction.
abstract: BACKGROUND
  Most studies in performing slips and falls research reported their results after the ipsilateral leg of subjects (either right foot or left foot) was guided to contact the contaminated floor surface although many studies indicated concerns for asymmetries of legs in kinematic or kinetic variables. Thus, the present study evaluated if dominant leg's slip tendency would be different from non-dominant leg's slip tendency by comparing the Required Coefficient of Friction (RCOF) of the two lower limbs.
  
  
  RESULTS
  Forty seven health adults participated in the present study. RCOF was measured when left or right foot of subjects contacted the force platforms respectively. Paired t-test was performed to test if RCOF and heel velocity (HCV) of dominant legs was different from that of non-dominant legs. It was suggested that the asymmetry in RCOFs and HCV between the two lower limbs existed. The RCOFs of non-dominant legs were higher than that of dominant legs.
  
  
  CONCLUSIONS
  The results indicated that asymmetry in slip propensity, RCOF, was existed in lower extremity. The results from the study suggested that it would be benefit to include a variable, such as asymmetry, in slips and falls research.
authors.affiliation: Division of Sports Science, College of Natural Science, WonKwang University, Iksan-si, Jeollabuk-do, South Korea.
authors.forename: Jung-suk
authors.initials: JS
authors.lastname: Seo
authors.forename: Sukwon
authors.initials: S
authors.lastname: Kim
mesh_terms: D000058:Accidental Falls; D000328:Adult; D000368:Aged; D001696:Biomechanical Phenomena; D005260:Female; D005430:Floors and Floorcoverings; D017276:Friction / Q000502:physiology*; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D007866:Leg / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D055815:Young Adult
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