Walking velocity and modified rivermead mobility index as discriminatory measures for functional ambulation classification of chronic stroke patients

Background: The cut-off values of walking velocity and classification of functional mobility both have a role in clinical settings for assessing the walking function of stroke patients and setting rehabilitation goals and treatment plans. Objective: The present study investigated whether the cut-off...

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Main Authors: Ji Young Lim, Seung Heon An, Dae-Sung Park
Format: Article
Language:English
Published: World Scientific Publishing 2019-12-01
Series:Hong Kong Physiotherapy Journal
Subjects:
Online Access:http://www.worldscientific.com/doi/pdf/10.1142/S1013702519500112
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author Ji Young Lim
Seung Heon An
Dae-Sung Park
author_facet Ji Young Lim
Seung Heon An
Dae-Sung Park
author_sort Ji Young Lim
collection DOAJ
description Background: The cut-off values of walking velocity and classification of functional mobility both have a role in clinical settings for assessing the walking function of stroke patients and setting rehabilitation goals and treatment plans. Objective: The present study investigated whether the cut-off values of the modified Rivermead Mobility Index (mRMI) and walking velocity accurately differentiated the walking ability of stroke patients according to the modified Functional Ambulation Category (mFAC). Methods: Eighty two chronic stroke patients were included in the study. The comfortable/maximum walking velocities and mRMI were used to measure the mobility outcomes of these patients. To compare the walking velocities and mRMI scores for each mFAC point, one-way analysis of variance and the post-hoc test using Scheffe’s method were performed. The patients were categorized according to gait ability into either mFAC=VII or mFAC≤VI group. The cut-off values for mRMI and walking velocities were calculated using a receiver-operating characteristic curve. The odds ratios of logistic regression analysis (Wald Forward) were analyzed to examine whether the cut-off values of walking velocity and mRMI can be utilized to differentiate functional walking levels. Results: Except for mFACs III and IV, maximum walking velocity differed between mFAC IV and mFAC V (p<0.01), between mFAC V and mFAC VI (p<0.001), and between mFAC VI and mFAC VII (p<0.05). The cut-off value of mRMI is >26.5 and the area under the curve is 0.87, respectively; the cut-off value for comfortable walking velocity is >0.77m/s and the area under the curve is 0.92, respectively; also, the cut-off value for maximum walking velocity is >0.92m/s and the area under the curve is 0.97, respectively. In the logistic regression analysis, the maximum walking velocity (>0.92m/s, OR=22.027) and mRMI (>26.5 scores, OR=10.283) are able to distinguish mFAC=VII from mFAC≤VI. Conclusion: The cut-off values of maximum walking velocity and mRMI are recommended as useful outcome measures for assessing ambulation levels in chronic stroke patients during rehabilitation.
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spelling doaj.art-a67605daaad9460f99e6027ccd720ef42022-12-22T00:17:00ZengWorld Scientific PublishingHong Kong Physiotherapy Journal1013-70251876-441X2019-12-0139212513210.1142/S101370251950011210.1142/S1013702519500112Walking velocity and modified rivermead mobility index as discriminatory measures for functional ambulation classification of chronic stroke patientsJi Young Lim0Seung Heon An1Dae-Sung Park2Department of Physical Therapy, Konyang University, Daejeon, Republic of KoreaDepartment of Physical Therapy, National Rehabilitation Hospital, Seoul, Republic of KoreaDepartment of Physical Therapy, Konyang University, Daejeon, Republic of KoreaBackground: The cut-off values of walking velocity and classification of functional mobility both have a role in clinical settings for assessing the walking function of stroke patients and setting rehabilitation goals and treatment plans. Objective: The present study investigated whether the cut-off values of the modified Rivermead Mobility Index (mRMI) and walking velocity accurately differentiated the walking ability of stroke patients according to the modified Functional Ambulation Category (mFAC). Methods: Eighty two chronic stroke patients were included in the study. The comfortable/maximum walking velocities and mRMI were used to measure the mobility outcomes of these patients. To compare the walking velocities and mRMI scores for each mFAC point, one-way analysis of variance and the post-hoc test using Scheffe’s method were performed. The patients were categorized according to gait ability into either mFAC=VII or mFAC≤VI group. The cut-off values for mRMI and walking velocities were calculated using a receiver-operating characteristic curve. The odds ratios of logistic regression analysis (Wald Forward) were analyzed to examine whether the cut-off values of walking velocity and mRMI can be utilized to differentiate functional walking levels. Results: Except for mFACs III and IV, maximum walking velocity differed between mFAC IV and mFAC V (p<0.01), between mFAC V and mFAC VI (p<0.001), and between mFAC VI and mFAC VII (p<0.05). The cut-off value of mRMI is >26.5 and the area under the curve is 0.87, respectively; the cut-off value for comfortable walking velocity is >0.77m/s and the area under the curve is 0.92, respectively; also, the cut-off value for maximum walking velocity is >0.92m/s and the area under the curve is 0.97, respectively. In the logistic regression analysis, the maximum walking velocity (>0.92m/s, OR=22.027) and mRMI (>26.5 scores, OR=10.283) are able to distinguish mFAC=VII from mFAC≤VI. Conclusion: The cut-off values of maximum walking velocity and mRMI are recommended as useful outcome measures for assessing ambulation levels in chronic stroke patients during rehabilitation.http://www.worldscientific.com/doi/pdf/10.1142/S1013702519500112Discriminatory factorsmodified Functional Ambulation Categorymodified Rivermead Mobility Indexstrokewalking speed
spellingShingle Ji Young Lim
Seung Heon An
Dae-Sung Park
Walking velocity and modified rivermead mobility index as discriminatory measures for functional ambulation classification of chronic stroke patients
Hong Kong Physiotherapy Journal
Discriminatory factors
modified Functional Ambulation Category
modified Rivermead Mobility Index
stroke
walking speed
title Walking velocity and modified rivermead mobility index as discriminatory measures for functional ambulation classification of chronic stroke patients
title_full Walking velocity and modified rivermead mobility index as discriminatory measures for functional ambulation classification of chronic stroke patients
title_fullStr Walking velocity and modified rivermead mobility index as discriminatory measures for functional ambulation classification of chronic stroke patients
title_full_unstemmed Walking velocity and modified rivermead mobility index as discriminatory measures for functional ambulation classification of chronic stroke patients
title_short Walking velocity and modified rivermead mobility index as discriminatory measures for functional ambulation classification of chronic stroke patients
title_sort walking velocity and modified rivermead mobility index as discriminatory measures for functional ambulation classification of chronic stroke patients
topic Discriminatory factors
modified Functional Ambulation Category
modified Rivermead Mobility Index
stroke
walking speed
url http://www.worldscientific.com/doi/pdf/10.1142/S1013702519500112
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