Framework for Personalizing Wearable Devices Using Real-Time Physiological Measures

Personalizing wearable robots by incorporating user physiological feedback can improve energy efficiency and comfort. However, many current personalization methods are specific to a particular device and often require reprogramming, making them less accessible. In this study, we present an open-sour...

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Main Authors: Prakyath Kantharaju, Sai Siddarth Vakacherla, Michael Jacobson, Hyeongkeun Jeong, Meet Nikunj Mevada, Xingyuan Zhou, Matthew J. Major, Myunghee Kim
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
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Online Access:https://ieeexplore.ieee.org/document/10196448/
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author Prakyath Kantharaju
Sai Siddarth Vakacherla
Michael Jacobson
Hyeongkeun Jeong
Meet Nikunj Mevada
Xingyuan Zhou
Matthew J. Major
Myunghee Kim
author_facet Prakyath Kantharaju
Sai Siddarth Vakacherla
Michael Jacobson
Hyeongkeun Jeong
Meet Nikunj Mevada
Xingyuan Zhou
Matthew J. Major
Myunghee Kim
author_sort Prakyath Kantharaju
collection DOAJ
description Personalizing wearable robots by incorporating user physiological feedback can improve energy efficiency and comfort. However, many current personalization methods are specific to a particular device and often require reprogramming, making them less accessible. In this study, we present an open-source, device-independent personalization framework that allows for human-in-the-loop optimization. This modular framework includes cost functions and optimization algorithms that use a physiological response to optimize wearable robot parameters. We tested this framework in three case studies involving diverse subjects and wearable robots. The first case study focused on personalizing an ankle-foot prosthesis using indirect calorimetry feedback. This resulted in a 5.3% and 18.1% reduction in metabolic cost for walking for two individuals with transtibial amputation, compared to the weight-based assistance. The second case study personalized a robotic ankle exoskeleton for three different walking speeds using indirect calorimetry feedback for two subjects. The metabolic cost was reduced by 1%, 2%, and 5.8% for one subject and by 20.8%, 1.9%, and 19% for the other subject, compared to a generic assistance condition for increasing speeds. The third case study personalized gait parameters, specifically step frequency, using an electrocardiogram (ECG)-based cost function along with an optimization algorithm variant, resulting in a 43% reduction in optimization time for one non-disabled subject. These case studies suggest that our personalization framework can effectively personalize wearable robot parameters and potentially enhance assistance benefits.
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spelling doaj-art-c9edcc2bd4b3491db5789eaebfb6c85f2025-08-20T04:03:21ZengIEEEIEEE Access2169-35362023-01-0111813898140010.1109/ACCESS.2023.329987310196448Framework for Personalizing Wearable Devices Using Real-Time Physiological MeasuresPrakyath Kantharaju0https://orcid.org/0000-0003-3807-1683Sai Siddarth Vakacherla1Michael Jacobson2https://orcid.org/0000-0003-2220-8622Hyeongkeun Jeong3https://orcid.org/0000-0003-2592-7550Meet Nikunj Mevada4Xingyuan Zhou5Matthew J. Major6https://orcid.org/0000-0002-2330-4619Myunghee Kim7https://orcid.org/0000-0001-8965-6206Department of Mechanical and Industrial Engineering, University of Illinois Chicago, Chicago, IL, USADepartment of Mechanical and Industrial Engineering, University of Illinois Chicago, Chicago, IL, USADepartment of Mechanical and Industrial Engineering, University of Illinois Chicago, Chicago, IL, USADepartment of Mechanical and Industrial Engineering, University of Illinois Chicago, Chicago, IL, USADepartment of Mechanical and Industrial Engineering, University of Illinois Chicago, Chicago, IL, USADepartment of Electrical and Computer Engineering, University of Illinois Chicago, Chicago, IL, USAResearch Health Scientist, Jesse Brown VA Medical Center, Chicago, IL, USADepartment of Mechanical and Industrial Engineering, University of Illinois Chicago, Chicago, IL, USAPersonalizing wearable robots by incorporating user physiological feedback can improve energy efficiency and comfort. However, many current personalization methods are specific to a particular device and often require reprogramming, making them less accessible. In this study, we present an open-source, device-independent personalization framework that allows for human-in-the-loop optimization. This modular framework includes cost functions and optimization algorithms that use a physiological response to optimize wearable robot parameters. We tested this framework in three case studies involving diverse subjects and wearable robots. The first case study focused on personalizing an ankle-foot prosthesis using indirect calorimetry feedback. This resulted in a 5.3% and 18.1% reduction in metabolic cost for walking for two individuals with transtibial amputation, compared to the weight-based assistance. The second case study personalized a robotic ankle exoskeleton for three different walking speeds using indirect calorimetry feedback for two subjects. The metabolic cost was reduced by 1%, 2%, and 5.8% for one subject and by 20.8%, 1.9%, and 19% for the other subject, compared to a generic assistance condition for increasing speeds. The third case study personalized gait parameters, specifically step frequency, using an electrocardiogram (ECG)-based cost function along with an optimization algorithm variant, resulting in a 43% reduction in optimization time for one non-disabled subject. These case studies suggest that our personalization framework can effectively personalize wearable robot parameters and potentially enhance assistance benefits.https://ieeexplore.ieee.org/document/10196448/Wearable devicepersonalizationhuman-in-the-loop optimizationexoskeletonprosthesismetabolic cost
spellingShingle Prakyath Kantharaju
Sai Siddarth Vakacherla
Michael Jacobson
Hyeongkeun Jeong
Meet Nikunj Mevada
Xingyuan Zhou
Matthew J. Major
Myunghee Kim
Framework for Personalizing Wearable Devices Using Real-Time Physiological Measures
IEEE Access
Wearable device
personalization
human-in-the-loop optimization
exoskeleton
prosthesis
metabolic cost
title Framework for Personalizing Wearable Devices Using Real-Time Physiological Measures
title_full Framework for Personalizing Wearable Devices Using Real-Time Physiological Measures
title_fullStr Framework for Personalizing Wearable Devices Using Real-Time Physiological Measures
title_full_unstemmed Framework for Personalizing Wearable Devices Using Real-Time Physiological Measures
title_short Framework for Personalizing Wearable Devices Using Real-Time Physiological Measures
title_sort framework for personalizing wearable devices using real time physiological measures
topic Wearable device
personalization
human-in-the-loop optimization
exoskeleton
prosthesis
metabolic cost
url https://ieeexplore.ieee.org/document/10196448/
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