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Predictive factors of hypertonia in the upper extremity of chronic stroke survivors

[Purpose] Muscle tone is known to predict the motor function of the upper extremity within 12 months after onset in stroke survivors. The aim of this study was to investigate whether motor function of the upper extremity can predict the risk of hypertonia in chronic stroke survivors, and to analyze...

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Autores principales: Lee, GyuChang, An, SeungHeon, Lee, YunBok, Lee, DongGeon, Park, Dong-sik
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Society of Physical Therapy Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4563311/
https://www.ncbi.nlm.nih.gov/pubmed/26357437
http://dx.doi.org/10.1589/jpts.27.2545
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author Lee, GyuChang
An, SeungHeon
Lee, YunBok
Lee, DongGeon
Park, Dong-sik
author_facet Lee, GyuChang
An, SeungHeon
Lee, YunBok
Lee, DongGeon
Park, Dong-sik
author_sort Lee, GyuChang
collection PubMed
description [Purpose] Muscle tone is known to predict the motor function of the upper extremity within 12 months after onset in stroke survivors. The aim of this study was to investigate whether motor function of the upper extremity can predict the risk of hypertonia in chronic stroke survivors, and to analyze the correlation between the two variables to determine the predictive validity. [Subjects and Methods] Forty-three chronic stroke survivors were assessed using the Modified Ashworth Scale (MAS) for elbow flexor tone, the Fugl-Meyer assessment of the upper extremity (FM-UE), and the Action Research Arm Test (ARAT) for upper extremity motor recovery and function. [Results] Elbow flexor tone (MAS≥1(+)) increased by 0.246 compared with the baseline muscle tone even at month 12 and appeared to negatively affect the motor function of the upper extremity. The cutoff value for predicting muscle tone (MAS≥1(+)) was 24 for FM-UE and 15.5 for ARAT. FM-UE had the biggest impact on elbow flexor tone (MAS≥1(+)), and the risk of elbow flexor hypertonia (MAS≥1(+)) increased 0.764-fold for a cutoff value of FM-UE≤24 compared with a cutoff value of FM-UE>24. [Conclusion] The results show that the most important variable for predicting muscle tone of the elbow flexor in stroke survivors is the FM assessment of the upper extremity.
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spelling pubmed-45633112015-09-09 Predictive factors of hypertonia in the upper extremity of chronic stroke survivors Lee, GyuChang An, SeungHeon Lee, YunBok Lee, DongGeon Park, Dong-sik J Phys Ther Sci Original Article [Purpose] Muscle tone is known to predict the motor function of the upper extremity within 12 months after onset in stroke survivors. The aim of this study was to investigate whether motor function of the upper extremity can predict the risk of hypertonia in chronic stroke survivors, and to analyze the correlation between the two variables to determine the predictive validity. [Subjects and Methods] Forty-three chronic stroke survivors were assessed using the Modified Ashworth Scale (MAS) for elbow flexor tone, the Fugl-Meyer assessment of the upper extremity (FM-UE), and the Action Research Arm Test (ARAT) for upper extremity motor recovery and function. [Results] Elbow flexor tone (MAS≥1(+)) increased by 0.246 compared with the baseline muscle tone even at month 12 and appeared to negatively affect the motor function of the upper extremity. The cutoff value for predicting muscle tone (MAS≥1(+)) was 24 for FM-UE and 15.5 for ARAT. FM-UE had the biggest impact on elbow flexor tone (MAS≥1(+)), and the risk of elbow flexor hypertonia (MAS≥1(+)) increased 0.764-fold for a cutoff value of FM-UE≤24 compared with a cutoff value of FM-UE>24. [Conclusion] The results show that the most important variable for predicting muscle tone of the elbow flexor in stroke survivors is the FM assessment of the upper extremity. The Society of Physical Therapy Science 2015-08-21 2015-08 /pmc/articles/PMC4563311/ /pubmed/26357437 http://dx.doi.org/10.1589/jpts.27.2545 Text en 2015©by the Society of Physical Therapy Science. Published by IPEC Inc. http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License.
spellingShingle Original Article
Lee, GyuChang
An, SeungHeon
Lee, YunBok
Lee, DongGeon
Park, Dong-sik
Predictive factors of hypertonia in the upper extremity of chronic stroke survivors
title Predictive factors of hypertonia in the upper extremity of chronic stroke survivors
title_full Predictive factors of hypertonia in the upper extremity of chronic stroke survivors
title_fullStr Predictive factors of hypertonia in the upper extremity of chronic stroke survivors
title_full_unstemmed Predictive factors of hypertonia in the upper extremity of chronic stroke survivors
title_short Predictive factors of hypertonia in the upper extremity of chronic stroke survivors
title_sort predictive factors of hypertonia in the upper extremity of chronic stroke survivors
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4563311/
https://www.ncbi.nlm.nih.gov/pubmed/26357437
http://dx.doi.org/10.1589/jpts.27.2545
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