Psychophysical assessment of the perceived slipperiness of floor tile surfaces in a laboratory setting
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Standard test method for static slip resistance of footwear sole, heel, or related materials by horizontal pull slipmeter (HPS)
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Fall accident patterns: Characterization of most frequent work surface-related injuries
Professional Safety
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Cited by (41)
Friction and wear mechanism of polymers, their composites and nanocomposites
2022, Tribology of Polymers, Polymer Composites, and Polymer NanocompositesBiomechanics of Human Gait on: Slips, Trips and Falls
2022, Encyclopedia of Forensic Sciences: Volume 1-4, Third EditionImpact of military type footwear and workload on heel contact dynamics during slip events
2018, International Journal of Industrial ErgonomicsCitation Excerpt :The intrinsic human factors, which include muscular fatigue and knowledge or anticipation of slippery environment, also serve as a predictors of slip events. The perception of a slip hazard can be an interaction of various factors, such as prior knowledge of a slip prone environment, ability to use visual perception in the presence or absence of adequate lighting, arousal/alertness levels and mental workload while encountering a slip (Cohen and Cohen, 1994a, 1994b). Prior knowledge and anticipation of a slippery floor allows the individuals to reduce the potential slips by making adaptations to the biomechanics of gait (Cham and Redfern, 2002a; Lockhart et al., 2007; Chander et al., 2016b).
Relationship among several measurements of slipperiness obtained in a laboratory environment
2018, Applied ErgonomicsHeel contact dynamics in alternative footwear during slip events
2015, International Journal of Industrial ErgonomicsCitation Excerpt :Based on the results from the current study, it appears that the alternative footwear which do not secure the hind foot and the ankle joint had a greater slip distances and slip velocities compared to low top shoes in which the footwear and the foot move together as one rigid segment. An intrinsic human factor as a predictor of slip events includes perception of a slip hazard which can be an interaction of various factors such as the prior knowledge of a slip prone environment, ability to use visual perception in the presence or absence of adequate lighting, arousal/alertness levels and mental workload while encountering a slip (Cohen and Cohen, 1994a, 1994b). Although, small forward heel displacements which have been shown to occur in regularly in normal gait, are often undetectable to the individual (Strandberg and Lanshammar, 1981; Hanson et al., 1999; Leamon and Murphy, 1995) for which the human postural control system is sufficient to recover (Redfern et al., 2001) and continue a normal gait pattern; previous studies have concluded that individuals are capable of differentiating slipperiness of the floor (Strandberg, 1983; Gronqvist et al., 2001) using tactile sliding resistance cues from the foot.
Biomechanics of Human Gait - Slip and Fall Analysis
2013, Encyclopedia of Forensic Sciences: Second Edition
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H. Harvey Cohen is the owner and principal scientist/ consultant at Cohen and Associates. He received his PhD in Human Factors/Ergonomics from North Carolina State University in 1972. Prior to forming his own safety and human factors research and consulting firms in 1977, Dr. Cohen was a senior research scientist with the National Institute for Occupational Safety and Health (NIOSH) in Cincinnati, OH. Dr. Cohen has authored over 100 publications in the safety and human factors fields and is frequently called upon to provide forensic consulting and expert witness services in accident litigation cases, especially those involving slips/trips/missteps and falls, product defects, warnings, visibility, and behavioral expectations. Dr. Cohen is a certified professional ergonomist (CPE) and serves as a founding officer of the Board of Certification in Professional Ergonomics (BCPE).
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David M. Cohen is a research associate with Cohen and Associates in La Mesa, CA. He is a graduate of the University of California at Santa Cruz where he majored in Psychology. He is currently pursuing a PhD at the California School of Professional Psychology in Fresno, CA.