Studying Maximum Plantar Stress per Insole Design Using Foot CT-Scan Images of Hyperelastic Soft Tissues
The insole shape and the resulting plantar stress distribution have a pivotal impact on overall health. In this paper, by Finite Element Method, maximum stress value and stress distribution of plantar were studied for different insoles designs, which are the flat surface and the custom-molded (confo...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Applied Bionics and Biomechanics |
| Online Access: | http://dx.doi.org/10.1155/2016/8985690 |
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| author | Ali Sarikhani Abbas Motalebizadeh Sasan Asiaei Babak Kamali Doost Azad |
| author_facet | Ali Sarikhani Abbas Motalebizadeh Sasan Asiaei Babak Kamali Doost Azad |
| author_sort | Ali Sarikhani |
| collection | DOAJ |
| description | The insole shape and the resulting plantar stress distribution have a pivotal impact on overall health. In this paper, by Finite Element Method, maximum stress value and stress distribution of plantar were studied for different insoles designs, which are the flat surface and the custom-molded (conformal) surface. Moreover, insole thickness, heel’s height, and different materials were used to minimize the maximum stress and achieve the most uniform stress distribution. The foot shape and its details used in this paper were imported from online CT-Scan images. Results show that the custom-molded insole reduced maximum stress 40% more than the flat surface insole. Upon increase of thickness in both insole types, stress distribution becomes more uniform and maximum stress value decreases up to 10%; however, increase of thickness becomes ineffective above a threshold of 1 cm. By increasing heel height (degree of insole), maximum stress moves from heel to toes and becomes more uniform. Therefore, this scenario is very helpful for control of stress in 0.2° to 0.4° degrees for custom-molded insole and over 1° for flat insole. By changing the material of the insole, the value of maximum stress remains nearly constant. The custom-molded (conformal) insole which has 0.5 to 1 cm thickness and 0.2° to 0.4° degrees is found to be the most compatible form for foot. |
| format | Article |
| id | doaj-art-65daabb4fbf04eb698b922c6521b935a |
| institution | Kabale University |
| issn | 1176-2322 1754-2103 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied Bionics and Biomechanics |
| spelling | doaj-art-65daabb4fbf04eb698b922c6521b935a2025-02-03T01:26:42ZengWileyApplied Bionics and Biomechanics1176-23221754-21032016-01-01201610.1155/2016/89856908985690Studying Maximum Plantar Stress per Insole Design Using Foot CT-Scan Images of Hyperelastic Soft TissuesAli Sarikhani0Abbas Motalebizadeh1Sasan Asiaei2Babak Kamali Doost Azad3School of Mechanical Engineering, Iran University of Science and Technology, Tehran 1684613114, IranSchool of Mechanical Engineering, Iran University of Science and Technology, Tehran 1684613114, IranSensors and Integrated Biomicrofluidics, Mems Laboratory, School of Mechanical Engineering, Iran University of Science and Technology, Tehran 1684613114, IranSchool of Mechanical Engineering, Iran University of Science and Technology, Tehran 1684613114, IranThe insole shape and the resulting plantar stress distribution have a pivotal impact on overall health. In this paper, by Finite Element Method, maximum stress value and stress distribution of plantar were studied for different insoles designs, which are the flat surface and the custom-molded (conformal) surface. Moreover, insole thickness, heel’s height, and different materials were used to minimize the maximum stress and achieve the most uniform stress distribution. The foot shape and its details used in this paper were imported from online CT-Scan images. Results show that the custom-molded insole reduced maximum stress 40% more than the flat surface insole. Upon increase of thickness in both insole types, stress distribution becomes more uniform and maximum stress value decreases up to 10%; however, increase of thickness becomes ineffective above a threshold of 1 cm. By increasing heel height (degree of insole), maximum stress moves from heel to toes and becomes more uniform. Therefore, this scenario is very helpful for control of stress in 0.2° to 0.4° degrees for custom-molded insole and over 1° for flat insole. By changing the material of the insole, the value of maximum stress remains nearly constant. The custom-molded (conformal) insole which has 0.5 to 1 cm thickness and 0.2° to 0.4° degrees is found to be the most compatible form for foot.http://dx.doi.org/10.1155/2016/8985690 |
| spellingShingle | Ali Sarikhani Abbas Motalebizadeh Sasan Asiaei Babak Kamali Doost Azad Studying Maximum Plantar Stress per Insole Design Using Foot CT-Scan Images of Hyperelastic Soft Tissues Applied Bionics and Biomechanics |
| title | Studying Maximum Plantar Stress per Insole Design Using Foot CT-Scan Images of Hyperelastic Soft Tissues |
| title_full | Studying Maximum Plantar Stress per Insole Design Using Foot CT-Scan Images of Hyperelastic Soft Tissues |
| title_fullStr | Studying Maximum Plantar Stress per Insole Design Using Foot CT-Scan Images of Hyperelastic Soft Tissues |
| title_full_unstemmed | Studying Maximum Plantar Stress per Insole Design Using Foot CT-Scan Images of Hyperelastic Soft Tissues |
| title_short | Studying Maximum Plantar Stress per Insole Design Using Foot CT-Scan Images of Hyperelastic Soft Tissues |
| title_sort | studying maximum plantar stress per insole design using foot ct scan images of hyperelastic soft tissues |
| url | http://dx.doi.org/10.1155/2016/8985690 |
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