Concurrent validity of a novel wireless inertial measurement system for assessing trunk impairment in people with stroke
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 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. Method: 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. Conclusion: 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.
Inertial sensor, Instrumented trunk impairment scale, Objective assessment, Stroke, Trunk impairment scale, Validity
Alhwoaimel, Norah
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Warner, Martin
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Hughes, Ann-Marie
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Ferrari, Federico
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Burridge, Jane
0110e9ea-0884-4982-a003-cb6307f38f64
Wee, Seng Kwee
876fdc2f-4b84-4aba-bf50-f3417ae532c2
Verheyden, Geert
65d3e411-9892-4f78-8a40-1131b2798abc
Turk, Ruth
9bb21965-6f9f-4c9c-8505-94df8e168f52
18 March 2020
Alhwoaimel, Norah
2bbf3fd2-1b5b-4f87-b357-47a182893249
Warner, Martin
f4dce73d-fb87-4f71-a3f0-078123aa040c
Hughes, Ann-Marie
11239f51-de47-4445-9a0d-5b82ddc11dea
Ferrari, Federico
cc1b45ac-e78d-449a-9dbb-e80d746eaafa
Burridge, Jane
0110e9ea-0884-4982-a003-cb6307f38f64
Wee, Seng Kwee
876fdc2f-4b84-4aba-bf50-f3417ae532c2
Verheyden, Geert
65d3e411-9892-4f78-8a40-1131b2798abc
Turk, Ruth
9bb21965-6f9f-4c9c-8505-94df8e168f52
Alhwoaimel, Norah, Warner, Martin, Hughes, Ann-Marie, Ferrari, Federico, Burridge, Jane, Wee, Seng Kwee, Verheyden, Geert and Turk, Ruth
(2020)
Concurrent validity of a novel wireless inertial measurement system for assessing trunk impairment in people with stroke.
Sensors, 20 (6), [1699].
(doi:10.3390/s20061699).
Abstract
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. Method: 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. Conclusion: 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.
Text
sensors-20-01699-v2 (1)
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Accepted/In Press date: 16 March 2020
Published date: 18 March 2020
Keywords:
Inertial sensor, Instrumented trunk impairment scale, Objective assessment, Stroke, Trunk impairment scale, Validity
Identifiers
Local EPrints ID: 438939
URI: http://eprints.soton.ac.uk/id/eprint/438939
ISSN: 1424-8220
PURE UUID: b93dd804-ab3f-4bc2-b42d-e57dbbccd1d5
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Date deposited: 27 Mar 2020 17:30
Last modified: 17 Mar 2024 03:05
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Author:
Norah Alhwoaimel
Author:
Federico Ferrari
Author:
Seng Kwee Wee
Author:
Geert Verheyden
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