Biometric personal authentication by one step foot pressure distribution change by load distribution sensor

Author(s):  
Takahiro Takeda ◽  
Kazuhiko Taniguchi ◽  
Kazunari Asari ◽  
Kei Kuramoto ◽  
Syoji Kobashi ◽  
...  
2021 ◽  
Vol 23 (2) ◽  
Author(s):  
Magdalena Stawińska ◽  
Paweł Kołodziejski ◽  
Ida Wiszomirska ◽  
Mateusz Baran ◽  
Andrzej Wit

Purpose: The aim of the experiment presented in this study was to determine the pressure distribution within the forefoot depending on the type of orthopaedic footwear used. Methods: The study included 27 women aged 20 to 25. The Zebris FDM-2 dynamographic platform was used in foot pressure measurements. The load distribution was measured in three types of orthopaedic footwear: MedSurg, MedSurgPro and OrthoWedge. The full gait cycle was recorded. The Cavanagh masks were applied to the load distribution results processed into a graphic form. The data were analysed using Statistica v.13.1. Results: In the forefoot area, i.e. the metatarsal bones and toes 1–5, the lowest loads were reported in the shoes that off-load the forefoot (0.2 N/cm2, p < 0.001). In the area of the first to fifth metatarsal bones and the hallux, the highest load was observed in the rocker shoe, accounting for 19.7 N/cm2 (p < 0.001). For comparison, high pressure in the flat shoe was found in the area of toes 2 to 5 (p < 0.001). Conclusions: In the area of the metatarsal and toe bones, the pressure exerted was highest in the commonly used rocker shoe. The flat shoe provides an even and uniform load in all areas of the forefoot, while this type of shoe does not significantly reduce the pressure forces on the forefoot. The shoe that was the most effective in off-loading was the forefoot off-loading shoe (OrthoWedge). Barefoot walking puts less load on the forefoot compared to the flat and rocker shoes used after orthopaedic procedures.


2021 ◽  
Vol 82 ◽  
pp. 103102
Author(s):  
Magdalena Zawadka ◽  
Maciej Kochman ◽  
Miroslaw Jablonski ◽  
Piotr Gawda

The Foot ◽  
2012 ◽  
Vol 22 (2) ◽  
pp. 70-73 ◽  
Author(s):  
Tsutomu Motooka ◽  
Hirofumi Tanaka ◽  
Shuya Ide ◽  
Masaaki Mawatari ◽  
Takao Hotokebuchi

2006 ◽  
Vol 27 (1) ◽  
pp. 43-52 ◽  
Author(s):  
Michael S. Aronow ◽  
Vilmaris Diaz-Doran ◽  
Raymond J. Sullivan ◽  
Douglas J. Adams

Injury ◽  
2017 ◽  
Vol 48 (4) ◽  
pp. 854-860 ◽  
Author(s):  
Christian Deml ◽  
Martin Eichinger ◽  
Wouter F. van Leeuwen ◽  
Stefanie Erhart ◽  
Simon A. Euler ◽  
...  

Author(s):  
Jacob M Branson ◽  
Marcus S Dersch ◽  
Arthur de Oliveira Lima ◽  
J Riley Edwards ◽  
Josue Cesar Bastos

The degradation of ballast particles and concrete crossties in heavy-haul railroad tracks poses problems such as inhibiting proper drainage and disturbing track geometry. under-tie pads offer a solution to reduce crosstie–ballast stresses by improving load distribution through the track structure and reducing pressures on ballast particles and the crosstie surface. Despite the emergence of under-tie pads on heavy-haul corridors, optimal characteristics for the reduction of the tie–ballast stress state have not been defined in literature. In this research, several under-tie pad products and generic materials with various thicknesses and hardnesses were studied to identify appropriate properties of under-tie pad products for pressure distribution. The findings from this research provide an insight into how material characteristics influence the pressure mitigation performance of under-tie pads. Results from this study indicate that thickness is the most crucial metric determining under-tie pad performance in reducing ballast degradation; hardness and material type also have an effect, but to a lesser degree.


The Foot ◽  
2011 ◽  
Vol 21 (3) ◽  
pp. 142-148 ◽  
Author(s):  
R. Periyasamy ◽  
A. Mishra ◽  
Sneh Anand ◽  
A.C. Ammini

2014 ◽  
Vol 7 (S1) ◽  
Author(s):  
Seung-Bum Park ◽  
Kyung-Deuk Lee ◽  
Dae-Woong Kim ◽  
Jung-Hyeon Yoo ◽  
Kyung-Hun Kim

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