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Xiong, Shuping
Ergonomics and Applied Biomechanics Lab
Research Interests
  • Ergonomic product design & development (especially footwear and body-fitted products)

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A model for the perception of surface pressure on human foot

Cited 2 times inthomson ciCited 2 times inthomson ci
Title
A model for the perception of surface pressure on human foot
Author
Xiong, ShupingGoonetilleke, Ravindra S.Rodrigo, W. D. Asanka S.Zhao, Jianhui
Keywords
Foot; Four-probe; Healthy subjects; Highly-correlated; Human foot; Pain threshold; Power exponent; Psychophysical; Sensory intensity; Surface pressures; Test location
Issue Date
201301
Publisher
ELSEVIER SCI LTD
Citation
APPLIED ERGONOMICS, v.44, no.1, pp.1 - 10
Abstract
The psychophysical relationship between the magnitude of pressure on thirteen test locations of twenty healthy subjects' feet with four probe areas at three indentation speeds and the corresponding perceived sensations were analyzed. The dependency of pressure pain thresholds (PPT) on area, A, and speed, v, can be mathematically modeled in the form, PPTi = [ai + bLn(v)]Aβ i = 1,2...13 where β and b are constants and are dependent on location and gender, and ai is a constant highly correlated with foot tissue stiffness.The relationship between the sensory intensity to pressure magnitude appears to follow a modified Stevens' power law with power exponents less than 1.0 and consistent across the 13 test locations with a mean of 0.82 and a range from 0.67 to 0.98. This particular model helps to understand the sensation of pressure threshold and its impact in the design of consumer products.
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DOI
http://dx.doi.org/10.1016/j.apergo.2012.04.019
ISSN
0003-6870
Appears in Collections:
DHE_Journal Papers

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