A model for the perception of surface pressure on human foot

Shuping Xiong, Ravindra S. Goonetilleke, W. D.Asanka S. Rodrigo, Jianhui Zhao

    Research output: Contribution to journalArticlepeer-review

    14 Scopus citations


    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.

    Original languageBritish English
    Pages (from-to)1-10
    Number of pages10
    JournalApplied Ergonomics
    Issue number1
    StatePublished - Jan 2013


    • Foot
    • Pain threshold
    • Perception


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