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Concurrent Validity of a Novel Wireless Inertial Measurement System for Assessing Trunk Impairment in People with Stroke

Background: The Trunk Impairment Scale (TIS) is recommended for clinical research use to assess trunk impairment post-stroke. However, it is observer-dependent and neglects the quality of trunk movements. This study proposes an instrumented TIS (iTIS) using the Valedo system, comprising portable ine...

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Autores principales: Alhwoaimel, Norah, Warner, Martin, Hughes, Ann-Marie, Ferrari, Federico, Burridge, Jane, Wee, Seng Kwee, Verheyden, Geert, Turk, Ruth
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7146128/
https://www.ncbi.nlm.nih.gov/pubmed/32197493
http://dx.doi.org/10.3390/s20061699
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author Alhwoaimel, Norah
Warner, Martin
Hughes, Ann-Marie
Ferrari, Federico
Burridge, Jane
Wee, Seng Kwee
Verheyden, Geert
Turk, Ruth
author_facet Alhwoaimel, Norah
Warner, Martin
Hughes, Ann-Marie
Ferrari, Federico
Burridge, Jane
Wee, Seng Kwee
Verheyden, Geert
Turk, Ruth
author_sort Alhwoaimel, Norah
collection PubMed
description Background: The Trunk Impairment Scale (TIS) is recommended for clinical research use to assess trunk impairment post-stroke. However, it is observer-dependent and neglects the quality of trunk movements. This study proposes an instrumented TIS (iTIS) using the Valedo system, comprising portable inertial sensors, as an objective measure of trunk impairment post-stroke. Objective: This study investigates the concurrent and discriminant ability of the iTIS in chronic stroke participants. Methods: Forty participants (20 with chronic stroke, 20 healthy, age-matched) were assessed using the TIS and iTIS simultaneously. A Spearman rank correlation coefficient was used to examine concurrent validity. A ROC curve was used to determine whether the iTIS could distinguish between stroke participants with and without trunk impairment. Results: A moderate relationship was found between the observed iTIS parameters and the clinical scores, supporting the concurrent validity of the iTIS. The small sample size meant definitive conclusions could not be drawn about the parameter differences between stroke groups (participants scoring zero and one on the clinical TIS) and the parameter cut-off points. Conclusions: The iTIS can detect small changes in trunk ROM that cannot be observed clinically. The iTIS has important implications for objective assessments of trunk impairment in clinical practice.
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spelling pubmed-71461282020-04-15 Concurrent Validity of a Novel Wireless Inertial Measurement System for Assessing Trunk Impairment in People with Stroke Alhwoaimel, Norah Warner, Martin Hughes, Ann-Marie Ferrari, Federico Burridge, Jane Wee, Seng Kwee Verheyden, Geert Turk, Ruth Sensors (Basel) Article Background: The Trunk Impairment Scale (TIS) is recommended for clinical research use to assess trunk impairment post-stroke. However, it is observer-dependent and neglects the quality of trunk movements. This study proposes an instrumented TIS (iTIS) using the Valedo system, comprising portable inertial sensors, as an objective measure of trunk impairment post-stroke. Objective: This study investigates the concurrent and discriminant ability of the iTIS in chronic stroke participants. Methods: Forty participants (20 with chronic stroke, 20 healthy, age-matched) were assessed using the TIS and iTIS simultaneously. A Spearman rank correlation coefficient was used to examine concurrent validity. A ROC curve was used to determine whether the iTIS could distinguish between stroke participants with and without trunk impairment. Results: A moderate relationship was found between the observed iTIS parameters and the clinical scores, supporting the concurrent validity of the iTIS. The small sample size meant definitive conclusions could not be drawn about the parameter differences between stroke groups (participants scoring zero and one on the clinical TIS) and the parameter cut-off points. Conclusions: The iTIS can detect small changes in trunk ROM that cannot be observed clinically. The iTIS has important implications for objective assessments of trunk impairment in clinical practice. MDPI 2020-03-18 /pmc/articles/PMC7146128/ /pubmed/32197493 http://dx.doi.org/10.3390/s20061699 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Alhwoaimel, Norah
Warner, Martin
Hughes, Ann-Marie
Ferrari, Federico
Burridge, Jane
Wee, Seng Kwee
Verheyden, Geert
Turk, Ruth
Concurrent Validity of a Novel Wireless Inertial Measurement System for Assessing Trunk Impairment in People with Stroke
title Concurrent Validity of a Novel Wireless Inertial Measurement System for Assessing Trunk Impairment in People with Stroke
title_full Concurrent Validity of a Novel Wireless Inertial Measurement System for Assessing Trunk Impairment in People with Stroke
title_fullStr Concurrent Validity of a Novel Wireless Inertial Measurement System for Assessing Trunk Impairment in People with Stroke
title_full_unstemmed Concurrent Validity of a Novel Wireless Inertial Measurement System for Assessing Trunk Impairment in People with Stroke
title_short Concurrent Validity of a Novel Wireless Inertial Measurement System for Assessing Trunk Impairment in People with Stroke
title_sort concurrent validity of a novel wireless inertial measurement system for assessing trunk impairment in people with stroke
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7146128/
https://www.ncbi.nlm.nih.gov/pubmed/32197493
http://dx.doi.org/10.3390/s20061699
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