PMID- 24581815 OWN - NLM STAT- MEDLINE DCOM- 20140930 LR - 20211021 IS - 1873-2380 (Electronic) IS - 0021-9290 (Print) IS - 0021-9290 (Linking) VI - 47 IP - 6 DP - 2014 Apr 11 TI - Required coefficient of friction during turning at self-selected slow, normal, and fast walking speeds. PG - 1395-400 LID - S0021-9290(14)00063-3 [pii] LID - 10.1016/j.jbiomech.2014.01.032 [doi] AB - 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 degrees 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 mu=0.38, normal mu=0.45, and fast mu=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 mu>0.50, suggesting further research is needed into the minimum static COF to prevent slips and falls, especially around corners. CI - Copyright (c) 2014 Elsevier Ltd. All rights reserved. FAU - Fino, Peter AU - Fino P AD - Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, USA. FAU - Lockhart, Thurmon E AU - Lockhart TE AD - Grado Department of Industrial and Systems Engineering, Virginia Polytechnic Institute and State University, 557 Whittemore Hall, MC 0118, Blacksburg, VA 24061, USA. Electronic address: lockhart@vt.edu. LA - eng GR - L30 AG022963/AG/NIA NIH HHS/United States GR - R01 OH009222/OH/NIOSH CDC HHS/United States GR - R01-OH009222/OH/NIOSH CDC HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. DEP - 20140217 PL - United States TA - J Biomech JT - Journal of biomechanics JID - 0157375 SB - IM MH - Accidental Falls/*prevention & control MH - Adolescent MH - Adult MH - Biomechanical Phenomena MH - Female MH - *Friction MH - Gait MH - Humans MH - Kinetics MH - Male MH - Middle Aged MH - Models, Statistical MH - Regression Analysis MH - Stress, Mechanical MH - *Walking MH - Young Adult PMC - PMC4054705 MID - NIHMS568289 OTO - NOTNLM OT - Biomechanics OT - Friction OT - Friction demand OT - Gait OT - RCOF OT - Required coefficient of friction OT - Slips and falls OT - Speed OT - Turning COIS- Conflict of Interest: The authors affirm there are no conflicts of interest. EDAT- 2014/03/04 06:00 MHDA- 2014/10/01 06:00 PMCR- 2015/04/11 CRDT- 2014/03/04 06:00 PHST- 2013/09/20 00:00 [received] PHST- 2014/01/21 00:00 [revised] PHST- 2014/01/22 00:00 [accepted] PHST- 2014/03/04 06:00 [entrez] PHST- 2014/03/04 06:00 [pubmed] PHST- 2014/10/01 06:00 [medline] PHST- 2015/04/11 00:00 [pmc-release] AID - S0021-9290(14)00063-3 [pii] AID - 10.1016/j.jbiomech.2014.01.032 [doi] PST - ppublish SO - J Biomech. 2014 Apr 11;47(6):1395-400. doi: 10.1016/j.jbiomech.2014.01.032. Epub 2014 Feb 17.