PMID- 27367937
OWN - NLM
STAT- MEDLINE
DCOM- 20171228
LR  - 20181202
IS  - 1879-2219 (Electronic)
IS  - 0966-6362 (Linking)
VI  - 48
DP  - 2016 Jul
TI  - Required coefficient of friction during level walking is predictive of slipping.
PG  - 256-260
LID - S0966-6362(16)30082-0 [pii]
LID - 10.1016/j.gaitpost.2016.06.003 [doi]
AB  - The required coefficient of friction (RCOF) is frequently reported in the 
      literature as an indicator of slip propensity. This study aimed to further 
      develop slip prediction models based on RCOF by examining slips under moderately 
      slippery conditions where the RCOF was approximately equal to the available 
      coefficient of friction. Baseline RCOFs were found for normal walking trials and 
      then an unexpected slip was introduced with a moderately slippery boot-floor 
      contaminant combination for thirty-one subjects. Slip outcomes (i.e., whether a 
      subject experienced a slip) were assessed based on the displacement of a marker 
      placed on the heel. A logistic regression analysis was used to model the impact 
      of RCOF on slipping. Results showed that subjects who walked with a greater RCOF 
      were found to have a higher probability of slipping. The predicted probability of 
      a slip across the RCOF ranged from 3% to 95% and an increase of 0.01 in RCOF was 
      associated with a slipping odds ratio of 1.7. Thus, modest differences in RCOF 
      can have a dramatic impact on slip propensity. This study shows that RCOF can be 
      a sensitive and valid predictor of slipping in realistic frictional environments.
CI  - Copyright (c) 2016 Elsevier B.V. All rights reserved.
FAU - Beschorner, Kurt E
AU  - Beschorner KE
AD  - Department of Bioengineering, University of Pittsburgh, Benedum Engineering Hall 
      #302, 3700 O'hara St., Pittsburgh, PA 15261, United States. Electronic address: 
      beschorn@pitt.edu.
FAU - Albert, Devon L
AU  - Albert DL
AD  - Department of Bioengineering, University of Pittsburgh, Benedum Engineering Hall 
      #302, 3700 O'hara St., Pittsburgh, PA 15261, United States. Electronic address: 
      devonalbert16@gmail.com.
FAU - Redfern, Mark S
AU  - Redfern MS
AD  - Department of Bioengineering, University of Pittsburgh, Benedum Engineering Hall 
      #302, 3700 O'hara St., Pittsburgh, PA 15261, United States. Electronic address: 
      mredfern@pitt.edu.
LA  - eng
GR  - R01 OH008986/OH/NIOSH CDC HHS/United States
GR  - S10 RR027102/RR/NCRR NIH HHS/United States
PT  - Journal Article
DEP - 20160611
PL  - England
TA  - Gait Posture
JT  - Gait & posture
JID - 9416830
SB  - IM
MH  - *Accidental Falls
MH  - Adult
MH  - Biomechanical Phenomena/physiology
MH  - Humans
MH  - Logistic Models
MH  - Male
MH  - *Models, Statistical
MH  - Walking/*physiology
OTO - NOTNLM
OT  - Gait biomechanics
OT  - Required coefficient of friction
OT  - Slip and fall accidents
EDAT- 2016/07/02 06:00
MHDA- 2017/12/29 06:00
CRDT- 2016/07/02 06:00
PHST- 2016/02/13 00:00 [received]
PHST- 2016/05/04 00:00 [revised]
PHST- 2016/06/03 00:00 [accepted]
PHST- 2016/07/02 06:00 [entrez]
PHST- 2016/07/02 06:00 [pubmed]
PHST- 2017/12/29 06:00 [medline]
AID - S0966-6362(16)30082-0 [pii]
AID - 10.1016/j.gaitpost.2016.06.003 [doi]
PST - ppublish
SO  - Gait Posture. 2016 Jul;48:256-260. doi: 10.1016/j.gaitpost.2016.06.003. Epub 2016 
      Jun 11.