Translating high quality research specific to better design and building practice

Research Library

The HMinfo Research Library contains an in-depth collection of materials on home modifications and related subjects.

The Research Library does not lend books and other items. Under special circumstances, requests to use the library may be made by emailing .

Library Search


Slip potentials on ramps

Proceedings of the 37th Annual Meeting of the Human Factors and Ergonomics Society, Oct 11-15 1993

Author: Redfern, M. S., McVay, E. J.
Type: Conference Paper
Year: 1993


The purpose of this study was to determine the effect of ramp angle on slip potential at the feet during downward and upward gait. This was accomplished by investigating the relationship between the horizontal and vertical foot forces during gait as a function of ramp angle. A ramp was designed and built which incorporated a force plate. Foot forces were measured while subjects walked up and down the ramp. The ramp angle was varied from 0 to 20 degrees in 4 degree intervals. Normal forces were divided into the shear forces, thus calculating a 'required' coefficient of friction (RCOF) for the entire trial. The results showed shear forces increase both in magnitude and duration as ramp angle is increased.

Further Details

Tertiary Title: Proceedings of the Human Factors and Ergonomics Society
Author Address: The Univ of Pittsburgh, Pittsburgh, PA, USA
Pages: 701-704
Volume: 2
Publish Location: Seattle, WA, USA
Publisher: Publ by Human Factors and Ergonomics Society, Inc., Santa Monica, CA, USA
ISBN/ISSN: 0163-5182
Accession Number: 24.6.03
Keywords: ramp, safety improvement
Reads: 198