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Comparison of the Capacitance of a Cyclically Fatigued Stretch Sensor to a Non-Fatigued Stretch Sensor When Performing Static and Dynamic Foot-Ankle Motions
Motion capture is the current gold standard for assessing movement of the human body, but laboratory settings do not always mimic the natural terrains and movements encountered by humans. To overcome such limitations, a smart sock that is equipped with stretch sensors is being developed to record mo...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9661536/ https://www.ncbi.nlm.nih.gov/pubmed/36365868 http://dx.doi.org/10.3390/s22218168 |
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author | Persons, Andrea Karen Middleton, Carver Parker, Erin Carroll, Will Turner, Alana Talegaonkar, Purva Davarzani, Samaneh Saucier, David Chander, Harish Ball, John E. Elder, Steven H. Simpson, Chartrisa LaShan Macias, David Burch V., Reuben F. |
author_facet | Persons, Andrea Karen Middleton, Carver Parker, Erin Carroll, Will Turner, Alana Talegaonkar, Purva Davarzani, Samaneh Saucier, David Chander, Harish Ball, John E. Elder, Steven H. Simpson, Chartrisa LaShan Macias, David Burch V., Reuben F. |
author_sort | Persons, Andrea Karen |
collection | PubMed |
description | Motion capture is the current gold standard for assessing movement of the human body, but laboratory settings do not always mimic the natural terrains and movements encountered by humans. To overcome such limitations, a smart sock that is equipped with stretch sensors is being developed to record movement data outside of the laboratory. For the smart sock stretch sensors to provide valuable feedback, the sensors should have durability of both materials and signal. To test the durability of the stretch sensors, the sensors were exposed to high-cycle fatigue testing with simultaneous capture of the capacitance. Following randomization, either the fatigued sensor or an unfatigued sensor was placed in the plantarflexion position on the smart sock, and participants were asked to complete the following static movements: dorsiflexion, inversion, eversion, and plantarflexion. Participants were then asked to complete gait trials. The sensor was then exchanged for either an unfatigued or fatigued plantarflexion sensor, depending upon which sensor the trials began with, and each trial was repeated by the participant using the opposite sensor. Results of the tests show that for both the static and dynamic movements, the capacitive output of the fatigued sensor was consistently higher than that of the unfatigued sensor suggesting that an upwards drift of the capacitance was occurring in the fatigued sensors. More research is needed to determine whether stretch sensors should be pre-stretched prior to data collection, and to also determine whether the drift stabilizes once the cyclic softening of the materials comprising the sensor has stabilized. |
format | Online Article Text |
id | pubmed-9661536 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96615362022-11-15 Comparison of the Capacitance of a Cyclically Fatigued Stretch Sensor to a Non-Fatigued Stretch Sensor When Performing Static and Dynamic Foot-Ankle Motions Persons, Andrea Karen Middleton, Carver Parker, Erin Carroll, Will Turner, Alana Talegaonkar, Purva Davarzani, Samaneh Saucier, David Chander, Harish Ball, John E. Elder, Steven H. Simpson, Chartrisa LaShan Macias, David Burch V., Reuben F. Sensors (Basel) Article Motion capture is the current gold standard for assessing movement of the human body, but laboratory settings do not always mimic the natural terrains and movements encountered by humans. To overcome such limitations, a smart sock that is equipped with stretch sensors is being developed to record movement data outside of the laboratory. For the smart sock stretch sensors to provide valuable feedback, the sensors should have durability of both materials and signal. To test the durability of the stretch sensors, the sensors were exposed to high-cycle fatigue testing with simultaneous capture of the capacitance. Following randomization, either the fatigued sensor or an unfatigued sensor was placed in the plantarflexion position on the smart sock, and participants were asked to complete the following static movements: dorsiflexion, inversion, eversion, and plantarflexion. Participants were then asked to complete gait trials. The sensor was then exchanged for either an unfatigued or fatigued plantarflexion sensor, depending upon which sensor the trials began with, and each trial was repeated by the participant using the opposite sensor. Results of the tests show that for both the static and dynamic movements, the capacitive output of the fatigued sensor was consistently higher than that of the unfatigued sensor suggesting that an upwards drift of the capacitance was occurring in the fatigued sensors. More research is needed to determine whether stretch sensors should be pre-stretched prior to data collection, and to also determine whether the drift stabilizes once the cyclic softening of the materials comprising the sensor has stabilized. MDPI 2022-10-25 /pmc/articles/PMC9661536/ /pubmed/36365868 http://dx.doi.org/10.3390/s22218168 Text en © 2022 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 Persons, Andrea Karen Middleton, Carver Parker, Erin Carroll, Will Turner, Alana Talegaonkar, Purva Davarzani, Samaneh Saucier, David Chander, Harish Ball, John E. Elder, Steven H. Simpson, Chartrisa LaShan Macias, David Burch V., Reuben F. Comparison of the Capacitance of a Cyclically Fatigued Stretch Sensor to a Non-Fatigued Stretch Sensor When Performing Static and Dynamic Foot-Ankle Motions |
title | Comparison of the Capacitance of a Cyclically Fatigued Stretch Sensor to a Non-Fatigued Stretch Sensor When Performing Static and Dynamic Foot-Ankle Motions |
title_full | Comparison of the Capacitance of a Cyclically Fatigued Stretch Sensor to a Non-Fatigued Stretch Sensor When Performing Static and Dynamic Foot-Ankle Motions |
title_fullStr | Comparison of the Capacitance of a Cyclically Fatigued Stretch Sensor to a Non-Fatigued Stretch Sensor When Performing Static and Dynamic Foot-Ankle Motions |
title_full_unstemmed | Comparison of the Capacitance of a Cyclically Fatigued Stretch Sensor to a Non-Fatigued Stretch Sensor When Performing Static and Dynamic Foot-Ankle Motions |
title_short | Comparison of the Capacitance of a Cyclically Fatigued Stretch Sensor to a Non-Fatigued Stretch Sensor When Performing Static and Dynamic Foot-Ankle Motions |
title_sort | comparison of the capacitance of a cyclically fatigued stretch sensor to a non-fatigued stretch sensor when performing static and dynamic foot-ankle motions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9661536/ https://www.ncbi.nlm.nih.gov/pubmed/36365868 http://dx.doi.org/10.3390/s22218168 |
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