Details:

Alternative Title:
Appl Ergon
Personal Author:
Beschorner, Kurt E. ; Iraqi, Arian ; Redfern, Mark S. ; Moyer, Brian E. ; Cham, Rakié
Beschorner, Kurt E. ; Iraqi, Arian ; Redfern, Mark S. ; Moyer, Brian E. ; Cham, Rakié Less -
Description:
Available coefficient of friction (ACOF) is a common metric of footwear traction performance. ACOF is the ratio of friction to normal force, often averaged over a time-interval. The time-interval needed to achieve repeatable and valid ACOF is unknown. A post-hoc analysis was performed on nine shoe-floor-contaminant combinations to assess the repeatability and bias of data averaged across 4 time-intervals (2 ms, 50 ms, 100 ms, 200 ms) after the target normal force was reached. The ability to predict human slips was assessed for ACOF across these intervals. Differences in repeatability and validity across the four intervals were small. However, statistically significant differences were observed for the shortest compared with the longest interval (lower repeatability yet modestly improved predictive ability). Given the limited impact of time-interval on the results, a shorter interval of 50 ms is recommended to enable testing of smaller floor samples.
Subject:
[+]
Accidental Falls
Article
Biomechanical Phenomena
Floors And Floorcoverings
Friction
Humans
Reproducibility Of Results
Shoes
Surface Properties
Time Factors

Source:
Appl Ergon. 82:102959
Pubmed ID:
31568960
Pubmed Central ID:
PMC6922306
Document Type:
Journal Article
Funding:
R44 AG059258/AG/NIA NIH HHS/United States ; R01 OH010940/OH/NIOSH CDC HHS/United States ; S10 RR027102/RR/NCRR NIH HHS/United States ; R01 OH007592/OH/NIOSH CDC HHS/United States ; R01 OH008986/OH/NIOSH CDC HHS/United States
R44 AG059258/AG/NIA NIH HHS/United States ; R01 OH010940/OH/NIOSH CDC HHS/United States ; S10 RR027102/RR/NCRR NIH HHS/United States ; R01 OH007592/OH/NIOSH CDC HHS/United States ; R01 OH008986/OH/NIOSH CDC HHS/United States Less -
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:d1624c7a94c8e746abd9e0ded76c5216d1a575c7b51c3113bcd62518a44f266a
File Type:

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