Objective assessment of spasticity by pendulum test: a systematic review on methods of implementation and outcome measures

Abstract Background Instrumented pendulum test is an objective and repeatable biomechanical method of assessment for spasticity. However, multitude of sensor technologies and plenty of suggested outcome measures, confuse those interested in implementing this method in practice. Lack of a standard ag...

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Main Authors: Fariborz Rahimi, Reza Eyvazpour, Nazila Salahshour, Mahmood Reza Azghani
Format: Article
Language:English
Published: BMC 2020-11-01
Series:BioMedical Engineering OnLine
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12938-020-00826-8
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author Fariborz Rahimi
Reza Eyvazpour
Nazila Salahshour
Mahmood Reza Azghani
author_facet Fariborz Rahimi
Reza Eyvazpour
Nazila Salahshour
Mahmood Reza Azghani
author_sort Fariborz Rahimi
collection DOAJ
description Abstract Background Instrumented pendulum test is an objective and repeatable biomechanical method of assessment for spasticity. However, multitude of sensor technologies and plenty of suggested outcome measures, confuse those interested in implementing this method in practice. Lack of a standard agreement on the definition of experimental setup and outcome measures adds to this ambiguity and causes the results of one study not to be directly attainable by a group that uses a different setup. In this systematic review of studies, we aim to reduce the confusion by providing pros and cons of the available choices, and also by standardizing the definitions. Methods A literature search was conducted for the period of 1950 to the end of 2019 on PubMed, Science Direct, Google Scholar and IEEE explore; with keywords of “pendulum test” and “Spasticity”. Results Twenty-eight studies with instrumented pendulum test for assessment of spasticity met the inclusion criteria. All the suggested methods of implementation were compared and advantages and disadvantages were provided for each sensor technology. An exhaustive list categorized outcome measures in three groups of angle-based, angular velocity-based, and angular acceleration-based measures with all different names and definitions. Conclusions With the aim of providing standardized methodology with replicable and comparable results, sources of dissimilarity and ambiguity among research strategies were found and explained with the help of graphical representation of pendulum movement stages and corresponding parameters on the angular waveforms. We hope using the provided tables simplify the choices when implementing pendulum test for spasticity evaluation, improve the consistency when reporting the results, and disambiguate inconsistency in the literature.
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spelling doaj.art-08f184ca0d13488fa75d424bc3d9fd7a2022-12-22T03:01:35ZengBMCBioMedical Engineering OnLine1475-925X2020-11-0119111810.1186/s12938-020-00826-8Objective assessment of spasticity by pendulum test: a systematic review on methods of implementation and outcome measuresFariborz Rahimi0Reza Eyvazpour1Nazila Salahshour2Mahmood Reza Azghani3Department of Electrical Engineering, Faculty of Engineering, University of BonabDepartment of Electronics, Faculty of Electrical and Computer Engineering, University of TabrizDepartment of Electrical Engineering, Faculty of Engineering, University of BonabDepartment of Biomechanical Engineering, Faculty of Biomedical Engineering, Sahand University of TechnologyAbstract Background Instrumented pendulum test is an objective and repeatable biomechanical method of assessment for spasticity. However, multitude of sensor technologies and plenty of suggested outcome measures, confuse those interested in implementing this method in practice. Lack of a standard agreement on the definition of experimental setup and outcome measures adds to this ambiguity and causes the results of one study not to be directly attainable by a group that uses a different setup. In this systematic review of studies, we aim to reduce the confusion by providing pros and cons of the available choices, and also by standardizing the definitions. Methods A literature search was conducted for the period of 1950 to the end of 2019 on PubMed, Science Direct, Google Scholar and IEEE explore; with keywords of “pendulum test” and “Spasticity”. Results Twenty-eight studies with instrumented pendulum test for assessment of spasticity met the inclusion criteria. All the suggested methods of implementation were compared and advantages and disadvantages were provided for each sensor technology. An exhaustive list categorized outcome measures in three groups of angle-based, angular velocity-based, and angular acceleration-based measures with all different names and definitions. Conclusions With the aim of providing standardized methodology with replicable and comparable results, sources of dissimilarity and ambiguity among research strategies were found and explained with the help of graphical representation of pendulum movement stages and corresponding parameters on the angular waveforms. We hope using the provided tables simplify the choices when implementing pendulum test for spasticity evaluation, improve the consistency when reporting the results, and disambiguate inconsistency in the literature.http://link.springer.com/article/10.1186/s12938-020-00826-8SpasticityWartenberg pendulum testObjective assessmentOutcome measure
spellingShingle Fariborz Rahimi
Reza Eyvazpour
Nazila Salahshour
Mahmood Reza Azghani
Objective assessment of spasticity by pendulum test: a systematic review on methods of implementation and outcome measures
BioMedical Engineering OnLine
Spasticity
Wartenberg pendulum test
Objective assessment
Outcome measure
title Objective assessment of spasticity by pendulum test: a systematic review on methods of implementation and outcome measures
title_full Objective assessment of spasticity by pendulum test: a systematic review on methods of implementation and outcome measures
title_fullStr Objective assessment of spasticity by pendulum test: a systematic review on methods of implementation and outcome measures
title_full_unstemmed Objective assessment of spasticity by pendulum test: a systematic review on methods of implementation and outcome measures
title_short Objective assessment of spasticity by pendulum test: a systematic review on methods of implementation and outcome measures
title_sort objective assessment of spasticity by pendulum test a systematic review on methods of implementation and outcome measures
topic Spasticity
Wartenberg pendulum test
Objective assessment
Outcome measure
url http://link.springer.com/article/10.1186/s12938-020-00826-8
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