title: A model for the perception of surface pressure on human foot.
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, PPT(i) = [a(i) + bLn(v)]A(β)i = 1,2…13 where β and b are constants and are dependent on location and gender, and a(i) 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.
authors: School of Design and Human Engineering, Ulsan National Institute of Science and Technology, Ulsan Metropolitan City 689-798, South Korea.
authors: Shuping
authors: S
authors: Xiong
authors: Ravindra S
authors: RS
authors: Goonetilleke
authors: W D Asanka S
authors: WD
authors: Rodrigo
authors: Jianhui
authors: J
authors: Zhao
mesh_terms: D005260:Female; D005528:Foot / Q000502:physiology*; D006801:Humans; D008297:Male; D008959:Models, Neurological; D017288:Pain Threshold / Q000502:physiology*; D011312:Pressure; D055815:Young Adult