Design and Evaluation of a High-Performance, Low-Cost Prosthetic Foot for Developing CountriesSource: Journal of Medical Devices:;2022:;volume( 017 ):;issue: 001::page 11003-1DOI: 10.1115/1.4055967Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel, high-performance, cosmetic, rugged, appropriately costed, and mass-manufacturable prosthetic foot for use in low-income countries was designed and field tested. This ruggedized foot was created to accommodate the unique economic, environmental, and cultural requirements for users in India. A previous prototype that enabled able-bodied like gait was modified to include a durable cosmetic cover without altering the tuned stiffness of the overall foot. After undergoing mechanical benchtop testing, the foot was distributed to prosthesis users in India to for at least 5 months. Afterward, participants underwent clinical tests to evaluate walking performance, and additional benchtop testing was performed on the field-tested feet to identify changes in performance. The ruggedized foot endured 1 × 106 fatigue cycles without failure and demonstrated the desired stiffness properties. Subjects walked significantly faster (0.14 m/s) with the ruggedized foot compared to the Jaipur foot, and the feet showed no visible sign of damage after months of use. Additionally, the field-tested feet showed little difference in stiffness from a set of unused controls. Anecdotal feedback from the participants indicated that the foot improved their speed and/or walking effort, but may benefit from more degrees-of-freedom about the ankle. The results suggest that the foot fulfills its design requirements; however, further field testing is required with more participants over a longer period to make sure the foot is suitable for use in developing countries.
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contributor author | Johnson, W. Brett | |
contributor author | Prost, Victor | |
contributor author | Mukul, Pooja | |
contributor author | Winter, Amos | |
date accessioned | 2023-08-16T18:44:27Z | |
date available | 2023-08-16T18:44:27Z | |
date copyright | 11/9/2022 12:00:00 AM | |
date issued | 2022 | |
identifier issn | 1932-6181 | |
identifier other | med_017_01_011003.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4292416 | |
description abstract | A novel, high-performance, cosmetic, rugged, appropriately costed, and mass-manufacturable prosthetic foot for use in low-income countries was designed and field tested. This ruggedized foot was created to accommodate the unique economic, environmental, and cultural requirements for users in India. A previous prototype that enabled able-bodied like gait was modified to include a durable cosmetic cover without altering the tuned stiffness of the overall foot. After undergoing mechanical benchtop testing, the foot was distributed to prosthesis users in India to for at least 5 months. Afterward, participants underwent clinical tests to evaluate walking performance, and additional benchtop testing was performed on the field-tested feet to identify changes in performance. The ruggedized foot endured 1 × 106 fatigue cycles without failure and demonstrated the desired stiffness properties. Subjects walked significantly faster (0.14 m/s) with the ruggedized foot compared to the Jaipur foot, and the feet showed no visible sign of damage after months of use. Additionally, the field-tested feet showed little difference in stiffness from a set of unused controls. Anecdotal feedback from the participants indicated that the foot improved their speed and/or walking effort, but may benefit from more degrees-of-freedom about the ankle. The results suggest that the foot fulfills its design requirements; however, further field testing is required with more participants over a longer period to make sure the foot is suitable for use in developing countries. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Design and Evaluation of a High-Performance, Low-Cost Prosthetic Foot for Developing Countries | |
type | Journal Paper | |
journal volume | 17 | |
journal issue | 1 | |
journal title | Journal of Medical Devices | |
identifier doi | 10.1115/1.4055967 | |
journal fristpage | 11003-1 | |
journal lastpage | 11003-9 | |
page | 9 | |
tree | Journal of Medical Devices:;2022:;volume( 017 ):;issue: 001 | |
contenttype | Fulltext |