Kinematics and kinetics of the shoe during human slips

Journal of Biomechanics
Arian IraqiKurt E Beschorner

Abstract

This paper quantified the heel kinematics and kinetics during human slips with the goal of guiding available coefficient of friction (ACOF) testing methods for footwear and flooring. These values were then compared to the testing parameters recommended for measuring shoe-floor ACOF. Kinematic and kinetic data of thirty-nine subjects who experienced a slip incident were pooled from four similar human slipping studies for this secondary analysis. Vertical ground reaction force (VGRF), center of pressure (COP), shoe-floor angle, side-slip angle, sliding speed and contact time were quantified at slip start (SS) and at the time of peak sliding speed (PSS). Statistical comparisons were used to test if any discrepancies exist between the state of slipping foot and current ACOF testing parameters. The main findings were that the VGRF (26.7 %BW, 179.4 N), shoe-floor angle (22.1°) and contact time (0.02 s) at SS were significantly different from the recommended ACOF testing parameters. Instead, the testing parameters are mostly consistent with the state of the shoe at PSS. We argue that changing the footwear testing parameters to conditions at SS is more appropriate for relating ACOF to conditions of actual slips, including lower vertica...Continue Reading

References

Jan 17, 2002·Ergonomics·M S RedfernC Powers
Mar 1, 2002·Gait & Posture·Rakié Cham, Mark S Redfern
Aug 23, 2003·Ergonomics·Thurmon E LockhartJames L Smith
Aug 1, 2006·Gait & Posture·April J Chambers, Rakié Cham
Jan 2, 2007·Applied Ergonomics·Kurt E BeschornerRichard E Debski
May 12, 2009·Applied Ergonomics·Raymond W McGorryChien-Chi Chang
May 12, 2015·Applied Ergonomics·Mark G Blanchette, Christopher M Powers
Jan 8, 2016·Human Movement Science·Michel Johannes Hubertus Heijnen, Shirley Rietdyk
Jul 2, 2016·Gait & Posture·Kurt E BeschornerMark S Redfern
Feb 8, 2018·Applied Ergonomics·Taylor JonesKurt Beschorner
Jun 6, 2018·Applied Ergonomics·Arian IraqiKurt E Beschorner

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Citations

Jan 1, 2018·IISE Transactions on Occupational Ergonomics and Human Factors·Arnab ChandaKurt E Beschorner
Jun 3, 2020·Nature Biomedical Engineering·Sahab BabaeeGiovanni Traverso
Feb 11, 2021·International Journal of Environmental Research and Public Health·Harish ChanderAdam C Knight
Mar 19, 2021·Gait & Posture·Sarah L HemlerKurt E Beschorner

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