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A Bio-Inspired Arched Foot with Individual Toe Joints and Plantar Fascia
This paper presents the design and testing of an arched foot with several biomimetic features, including five individual MTP (toe) joints, four individual midfoot joints, and plantar fascia. The creation of a triple-arched foot represents a step further in bio-inspired design compared to other publi...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10604005/ https://www.ncbi.nlm.nih.gov/pubmed/37887586 http://dx.doi.org/10.3390/biomimetics8060455 |
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author | Burgess, Stuart Beeston, Alex Carr, Joshua Siempou, Kallia Simmonds, Maya Zanker, Yasmin |
author_facet | Burgess, Stuart Beeston, Alex Carr, Joshua Siempou, Kallia Simmonds, Maya Zanker, Yasmin |
author_sort | Burgess, Stuart |
collection | PubMed |
description | This paper presents the design and testing of an arched foot with several biomimetic features, including five individual MTP (toe) joints, four individual midfoot joints, and plantar fascia. The creation of a triple-arched foot represents a step further in bio-inspired design compared to other published designs. The arched structure creates flexibility that is similar to human feet with a vertical deflection of up to 12 mm. The individual toe joints enable abduction–adduction in the forefoot and therefore a natural pronation motion. Adult female bone data was obtained and converted into a CAD model to accurately identify the location of bones, joints, and arches. An analytical model is presented that gives the relationship between the vertical stiffness and horizontal stiffness of the longitudinal arches and therefore allows the optimization of stiffness elements. Experimental tests have demonstrated a vertical arch stiffness of 76 N/mm which is similar to adult human feet. The range of movement of the foot is similar to human feet with the following values: dorsi-plantarflexion (28°/37°), inversion-eversion (30°/15°), and abduction–adduction (30°/39°). Tests have also demonstrated a three-point contact with the ground that is similar to human feet. |
format | Online Article Text |
id | pubmed-10604005 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-106040052023-10-28 A Bio-Inspired Arched Foot with Individual Toe Joints and Plantar Fascia Burgess, Stuart Beeston, Alex Carr, Joshua Siempou, Kallia Simmonds, Maya Zanker, Yasmin Biomimetics (Basel) Article This paper presents the design and testing of an arched foot with several biomimetic features, including five individual MTP (toe) joints, four individual midfoot joints, and plantar fascia. The creation of a triple-arched foot represents a step further in bio-inspired design compared to other published designs. The arched structure creates flexibility that is similar to human feet with a vertical deflection of up to 12 mm. The individual toe joints enable abduction–adduction in the forefoot and therefore a natural pronation motion. Adult female bone data was obtained and converted into a CAD model to accurately identify the location of bones, joints, and arches. An analytical model is presented that gives the relationship between the vertical stiffness and horizontal stiffness of the longitudinal arches and therefore allows the optimization of stiffness elements. Experimental tests have demonstrated a vertical arch stiffness of 76 N/mm which is similar to adult human feet. The range of movement of the foot is similar to human feet with the following values: dorsi-plantarflexion (28°/37°), inversion-eversion (30°/15°), and abduction–adduction (30°/39°). Tests have also demonstrated a three-point contact with the ground that is similar to human feet. MDPI 2023-09-26 /pmc/articles/PMC10604005/ /pubmed/37887586 http://dx.doi.org/10.3390/biomimetics8060455 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Burgess, Stuart Beeston, Alex Carr, Joshua Siempou, Kallia Simmonds, Maya Zanker, Yasmin A Bio-Inspired Arched Foot with Individual Toe Joints and Plantar Fascia |
title | A Bio-Inspired Arched Foot with Individual Toe Joints and Plantar Fascia |
title_full | A Bio-Inspired Arched Foot with Individual Toe Joints and Plantar Fascia |
title_fullStr | A Bio-Inspired Arched Foot with Individual Toe Joints and Plantar Fascia |
title_full_unstemmed | A Bio-Inspired Arched Foot with Individual Toe Joints and Plantar Fascia |
title_short | A Bio-Inspired Arched Foot with Individual Toe Joints and Plantar Fascia |
title_sort | bio-inspired arched foot with individual toe joints and plantar fascia |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10604005/ https://www.ncbi.nlm.nih.gov/pubmed/37887586 http://dx.doi.org/10.3390/biomimetics8060455 |
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