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Work with me, not for me: Relationship between robotic assistance and performance in subacute and chronic stroke patients
INTRODUCTION: Studies in robotic therapy which applied the performance enhancement approach report improvements in motor performance during training, though these improvements do not always transfer to motor learning. OBJECTIVES: We postulate that there exists an assistance threshold for which perfo...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6952851/ https://www.ncbi.nlm.nih.gov/pubmed/31949919 http://dx.doi.org/10.1177/2055668319881583 |
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author | Kager, Simone Hussain, Asif Budhota, Aamani Dailey, Wayne D Hughes, Charmayne ML Deshmukh, Vishwanath A Kuah, Christopher WK Ng, Chwee Yin Yam, Lester HL Xiang, Liming Ang, Marcelo H Chua, Karen SG Campolo, Domenico |
author_facet | Kager, Simone Hussain, Asif Budhota, Aamani Dailey, Wayne D Hughes, Charmayne ML Deshmukh, Vishwanath A Kuah, Christopher WK Ng, Chwee Yin Yam, Lester HL Xiang, Liming Ang, Marcelo H Chua, Karen SG Campolo, Domenico |
author_sort | Kager, Simone |
collection | PubMed |
description | INTRODUCTION: Studies in robotic therapy which applied the performance enhancement approach report improvements in motor performance during training, though these improvements do not always transfer to motor learning. OBJECTIVES: We postulate that there exists an assistance threshold for which performance saturates. Above this threshold, the robot’s input outweighs the patient’s input and likely learning is not fostered. This study investigated the relationship between assistance and performance changes in stroke patients to find the assistance threshold for performance saturation. METHODS: Twelve subacute and chronic stroke patients engaged in five sessions (over two weeks, each 60 min) in which they performed a reaching task with the rehabilitation robot H-Man in presence of varying levels of haptic assistance (50 N/m to 290 N/m, randomized order). In two additional sessions, a therapist manually tuned the assistance to promote maximal motor learning. RESULTS: Higher levels of assistance resulted in smoother and faster performance that saturated at assistance levels with K ≥ 110 N/m. Also, the therapist selected assistance levels of K = 175 N/m or below. CONCLUSION: The findings of the study indicate that low levels of assistance (K ≤ 175 N/m) can sufficiently induce a significant change in performance. |
format | Online Article Text |
id | pubmed-6952851 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-69528512020-01-16 Work with me, not for me: Relationship between robotic assistance and performance in subacute and chronic stroke patients Kager, Simone Hussain, Asif Budhota, Aamani Dailey, Wayne D Hughes, Charmayne ML Deshmukh, Vishwanath A Kuah, Christopher WK Ng, Chwee Yin Yam, Lester HL Xiang, Liming Ang, Marcelo H Chua, Karen SG Campolo, Domenico J Rehabil Assist Technol Eng Original Article INTRODUCTION: Studies in robotic therapy which applied the performance enhancement approach report improvements in motor performance during training, though these improvements do not always transfer to motor learning. OBJECTIVES: We postulate that there exists an assistance threshold for which performance saturates. Above this threshold, the robot’s input outweighs the patient’s input and likely learning is not fostered. This study investigated the relationship between assistance and performance changes in stroke patients to find the assistance threshold for performance saturation. METHODS: Twelve subacute and chronic stroke patients engaged in five sessions (over two weeks, each 60 min) in which they performed a reaching task with the rehabilitation robot H-Man in presence of varying levels of haptic assistance (50 N/m to 290 N/m, randomized order). In two additional sessions, a therapist manually tuned the assistance to promote maximal motor learning. RESULTS: Higher levels of assistance resulted in smoother and faster performance that saturated at assistance levels with K ≥ 110 N/m. Also, the therapist selected assistance levels of K = 175 N/m or below. CONCLUSION: The findings of the study indicate that low levels of assistance (K ≤ 175 N/m) can sufficiently induce a significant change in performance. SAGE Publications 2020-01-09 /pmc/articles/PMC6952851/ /pubmed/31949919 http://dx.doi.org/10.1177/2055668319881583 Text en © The Author(s) 2019 http://creativecommons.org/licenses/by-nc/4.0/ Creative Commons Non Commercial CC BY-NC: This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Original Article Kager, Simone Hussain, Asif Budhota, Aamani Dailey, Wayne D Hughes, Charmayne ML Deshmukh, Vishwanath A Kuah, Christopher WK Ng, Chwee Yin Yam, Lester HL Xiang, Liming Ang, Marcelo H Chua, Karen SG Campolo, Domenico Work with me, not for me: Relationship between robotic assistance and performance in subacute and chronic stroke patients |
title | Work with me, not for me: Relationship between robotic assistance and
performance in subacute and chronic stroke patients |
title_full | Work with me, not for me: Relationship between robotic assistance and
performance in subacute and chronic stroke patients |
title_fullStr | Work with me, not for me: Relationship between robotic assistance and
performance in subacute and chronic stroke patients |
title_full_unstemmed | Work with me, not for me: Relationship between robotic assistance and
performance in subacute and chronic stroke patients |
title_short | Work with me, not for me: Relationship between robotic assistance and
performance in subacute and chronic stroke patients |
title_sort | work with me, not for me: relationship between robotic assistance and
performance in subacute and chronic stroke patients |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6952851/ https://www.ncbi.nlm.nih.gov/pubmed/31949919 http://dx.doi.org/10.1177/2055668319881583 |
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