Cognitive–Motor Coupling in Multiple Sclerosis: Do Chronological Age and Physical Activity Matter?

<b>Background</b>: People with multiple sclerosis (MS) often demonstrate both cognitive and physical dysfunctions, particularly with greater age and lower physical activity levels, and there is evidence of a relationship between these outcomes (i.e., cognitive–motor coupling) in MS. To d...

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Main Authors: Brenda Jeng, Peixuan Zheng, Robert W. Motl
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Brain Sciences
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Online Access:https://www.mdpi.com/2076-3425/15/3/274
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author Brenda Jeng
Peixuan Zheng
Robert W. Motl
author_facet Brenda Jeng
Peixuan Zheng
Robert W. Motl
author_sort Brenda Jeng
collection DOAJ
description <b>Background</b>: People with multiple sclerosis (MS) often demonstrate both cognitive and physical dysfunctions, particularly with greater age and lower physical activity levels, and there is evidence of a relationship between these outcomes (i.e., cognitive–motor coupling) in MS. To date, little is known about cognitive–motor coupling when controlling for chronological age and levels of physical activity. <b>Objectives</b>: We examined cognitive–motor coupling in people with MS while accounting for chronological age and physical activity. <b>Methods</b>: The sample included 290 people with MS between the ages of 22 and 77 years. Participants underwent the Symbol Digit Modalities Test (SDMT) for cognitive processing speed and the California Verbal Learning and Memory Test–Second Edition (CVLT-II) for verbal learning and memory. Participants completed the 6-Minute Walk and the Timed 25-Foot Walk tests for walking endurance and speed, respectively. Participants wore an accelerometer for a 7-day period to measure moderate-to-vigorous physical activity (MVPA). <b>Results</b>: The bivariate correlation analyses indicated that cognitive function had moderate-to-strong associations with motor function (range of <i>r<sub>s</sub></i> between 0.433 and 0.459). The linear regression analyses indicated cognitive–motor coupling between SDMT and motor function (with a range of β between 0.139 and 0.145) when controlling for demographic and clinical characteristics. The regression analyses further indicated that the CVLT-II was associated with motor function (with a range of β between 0.125 and 0.135) when controlling for demographic and clinical characteristics. When age and MVPA were entered into the regression analyses, SDMT was still associated with the motor function of individuals (β = 0.119), and CVLT-II was still associated with the motor function of individuals (with a range of β between 0.115 and 0.124). <b>Conclusions:</b> Cognitive–motor coupling is present in people with MS independent of chronological age and levels of physical activity. This warrants further investigation of the underlying mechanism and potential approaches for the management of co-occurring MS-related dysfunction.
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spelling doaj-art-e19f3c5619ff4a2f8bf65636ae827ba82025-08-20T02:42:42ZengMDPI AGBrain Sciences2076-34252025-03-0115327410.3390/brainsci15030274Cognitive–Motor Coupling in Multiple Sclerosis: Do Chronological Age and Physical Activity Matter?Brenda Jeng0Peixuan Zheng1Robert W. Motl2Department of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL 60612, USADepartment of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL 60612, USADepartment of Kinesiology and Nutrition, University of Illinois Chicago, Chicago, IL 60612, USA<b>Background</b>: People with multiple sclerosis (MS) often demonstrate both cognitive and physical dysfunctions, particularly with greater age and lower physical activity levels, and there is evidence of a relationship between these outcomes (i.e., cognitive–motor coupling) in MS. To date, little is known about cognitive–motor coupling when controlling for chronological age and levels of physical activity. <b>Objectives</b>: We examined cognitive–motor coupling in people with MS while accounting for chronological age and physical activity. <b>Methods</b>: The sample included 290 people with MS between the ages of 22 and 77 years. Participants underwent the Symbol Digit Modalities Test (SDMT) for cognitive processing speed and the California Verbal Learning and Memory Test–Second Edition (CVLT-II) for verbal learning and memory. Participants completed the 6-Minute Walk and the Timed 25-Foot Walk tests for walking endurance and speed, respectively. Participants wore an accelerometer for a 7-day period to measure moderate-to-vigorous physical activity (MVPA). <b>Results</b>: The bivariate correlation analyses indicated that cognitive function had moderate-to-strong associations with motor function (range of <i>r<sub>s</sub></i> between 0.433 and 0.459). The linear regression analyses indicated cognitive–motor coupling between SDMT and motor function (with a range of β between 0.139 and 0.145) when controlling for demographic and clinical characteristics. The regression analyses further indicated that the CVLT-II was associated with motor function (with a range of β between 0.125 and 0.135) when controlling for demographic and clinical characteristics. When age and MVPA were entered into the regression analyses, SDMT was still associated with the motor function of individuals (β = 0.119), and CVLT-II was still associated with the motor function of individuals (with a range of β between 0.115 and 0.124). <b>Conclusions:</b> Cognitive–motor coupling is present in people with MS independent of chronological age and levels of physical activity. This warrants further investigation of the underlying mechanism and potential approaches for the management of co-occurring MS-related dysfunction.https://www.mdpi.com/2076-3425/15/3/274cognitionphysical functionneurorehabilitationagingphysical activity
spellingShingle Brenda Jeng
Peixuan Zheng
Robert W. Motl
Cognitive–Motor Coupling in Multiple Sclerosis: Do Chronological Age and Physical Activity Matter?
Brain Sciences
cognition
physical function
neurorehabilitation
aging
physical activity
title Cognitive–Motor Coupling in Multiple Sclerosis: Do Chronological Age and Physical Activity Matter?
title_full Cognitive–Motor Coupling in Multiple Sclerosis: Do Chronological Age and Physical Activity Matter?
title_fullStr Cognitive–Motor Coupling in Multiple Sclerosis: Do Chronological Age and Physical Activity Matter?
title_full_unstemmed Cognitive–Motor Coupling in Multiple Sclerosis: Do Chronological Age and Physical Activity Matter?
title_short Cognitive–Motor Coupling in Multiple Sclerosis: Do Chronological Age and Physical Activity Matter?
title_sort cognitive motor coupling in multiple sclerosis do chronological age and physical activity matter
topic cognition
physical function
neurorehabilitation
aging
physical activity
url https://www.mdpi.com/2076-3425/15/3/274
work_keys_str_mv AT brendajeng cognitivemotorcouplinginmultiplesclerosisdochronologicalageandphysicalactivitymatter
AT peixuanzheng cognitivemotorcouplinginmultiplesclerosisdochronologicalageandphysicalactivitymatter
AT robertwmotl cognitivemotorcouplinginmultiplesclerosisdochronologicalageandphysicalactivitymatter