Rest the brain to learn new gait patterns after stroke.


Journal

Journal of neuroengineering and rehabilitation
ISSN: 1743-0003
Titre abrégé: J Neuroeng Rehabil
Pays: England
ID NLM: 101232233

Informations de publication

Date de publication:
29 Oct 2024
Historique:
received: 09 05 2024
accepted: 18 10 2024
medline: 30 10 2024
pubmed: 30 10 2024
entrez: 30 10 2024
Statut: epublish

Résumé

The ability to relearn a lost skill is critical to motor recovery after a stroke. Previous studies indicate that stroke typically affects the processes underlying motor control and execution but not the learning of those skills. However, these studies could be confounded by the presence of significant motor impairments. Furthermore, prior research involving the upper extremity indicates that stroke survivors have an advantage in offline motor learning when compared with controls. However, this has not been examined using motor acuity tasks (i.e., tasks focusing on the quality of executed actions) that have direct functional relevance to rehabilitation. Investigate how stroke affects leg motor skill learning during walking in stroke survivors. Twenty-five participants (10 stroke; 15 controls) were recruited for this prospective, case-control study. Participants learned a novel foot-trajectory tracking task on two consecutive days while walking on a treadmill. The task necessitated greater hip and knee flexion during the swing phase of the gait. Online learning was measured by comparing tracking error at the beginning and end of each practice session, offline (rest-driven) learning was measured by comparing the end of the first practice session to the beginning of the second, and retention was measured by comparing the beginning of the first practice session to the beginning of the second. Online learning, offline learning, and retention were compared between the stroke survivors and uninjured controls. Stroke survivors improved their tracking performance on the first day (p = 0.033); however, the amount of learning in stroke survivors was lower in comparison with the control group on both days (p ≤ 0.05). Interestingly, stroke survivors showed higher offline learning gains when compared with uninjured controls (p = 0.011). Even stroke survivors with no perceivable motor impairments have difficulty acquiring new motor skills related to walking, which may be related to the underlying neural damage caused at the time of stroke. Furthermore, stroke survivors may require longer training with adequate rest to acquire new motor skills.

Sections du résumé

BACKGROUND BACKGROUND
The ability to relearn a lost skill is critical to motor recovery after a stroke. Previous studies indicate that stroke typically affects the processes underlying motor control and execution but not the learning of those skills. However, these studies could be confounded by the presence of significant motor impairments. Furthermore, prior research involving the upper extremity indicates that stroke survivors have an advantage in offline motor learning when compared with controls. However, this has not been examined using motor acuity tasks (i.e., tasks focusing on the quality of executed actions) that have direct functional relevance to rehabilitation.
OBJECTIVE OBJECTIVE
Investigate how stroke affects leg motor skill learning during walking in stroke survivors.
METHODS METHODS
Twenty-five participants (10 stroke; 15 controls) were recruited for this prospective, case-control study. Participants learned a novel foot-trajectory tracking task on two consecutive days while walking on a treadmill. The task necessitated greater hip and knee flexion during the swing phase of the gait. Online learning was measured by comparing tracking error at the beginning and end of each practice session, offline (rest-driven) learning was measured by comparing the end of the first practice session to the beginning of the second, and retention was measured by comparing the beginning of the first practice session to the beginning of the second. Online learning, offline learning, and retention were compared between the stroke survivors and uninjured controls.
RESULTS RESULTS
Stroke survivors improved their tracking performance on the first day (p = 0.033); however, the amount of learning in stroke survivors was lower in comparison with the control group on both days (p ≤ 0.05). Interestingly, stroke survivors showed higher offline learning gains when compared with uninjured controls (p = 0.011).
CONCLUSIONS CONCLUSIONS
Even stroke survivors with no perceivable motor impairments have difficulty acquiring new motor skills related to walking, which may be related to the underlying neural damage caused at the time of stroke. Furthermore, stroke survivors may require longer training with adequate rest to acquire new motor skills.

Identifiants

pubmed: 39472911
doi: 10.1186/s12984-024-01494-8
pii: 10.1186/s12984-024-01494-8
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

192

Subventions

Organisme : NIH HHS
ID : R41-HD111289
Pays : United States
Organisme : National Science Foundation
ID : DGE #1256260

Informations de copyright

© 2024. The Author(s).

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Auteurs

Chandramouli Krishnan (C)

Department of Physical Medicine and Rehabilitation, Neuromuscular and Rehabilitation Robotics Laboratory (NeuRRo Lab), Michigan Medicine, University of Michigan, 325 E Eisenhower Parkway (Room 3013), Ann Arbor, MI, 48108, USA. mouli@umich.edu.
Department of Robotics, University of Michigan, Ann Arbor, MI, USA. mouli@umich.edu.
Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA. mouli@umich.edu.
School of Kinesiology, University of Michigan, Ann Arbor, MI, USA. mouli@umich.edu.
Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA. mouli@umich.edu.
Department of Physical Therapy, University of Michigan-Flint, Flint, MI, USA. mouli@umich.edu.

Thomas E Augenstein (TE)

Department of Physical Medicine and Rehabilitation, Neuromuscular and Rehabilitation Robotics Laboratory (NeuRRo Lab), Michigan Medicine, University of Michigan, 325 E Eisenhower Parkway (Room 3013), Ann Arbor, MI, 48108, USA.
Department of Robotics, University of Michigan, Ann Arbor, MI, USA.

Edward S Claflin (ES)

Department of Physical Medicine and Rehabilitation, Neuromuscular and Rehabilitation Robotics Laboratory (NeuRRo Lab), Michigan Medicine, University of Michigan, 325 E Eisenhower Parkway (Room 3013), Ann Arbor, MI, 48108, USA.

Courtney R Hemsley (CR)

Department of Physical Medicine and Rehabilitation, Neuromuscular and Rehabilitation Robotics Laboratory (NeuRRo Lab), Michigan Medicine, University of Michigan, 325 E Eisenhower Parkway (Room 3013), Ann Arbor, MI, 48108, USA.

Edward P Washabaugh (EP)

Department of Physical Medicine and Rehabilitation, Neuromuscular and Rehabilitation Robotics Laboratory (NeuRRo Lab), Michigan Medicine, University of Michigan, 325 E Eisenhower Parkway (Room 3013), Ann Arbor, MI, 48108, USA.
Department of Biomedical Engineering, Wayne State University, Detroit, MI, USA.

Rajiv Ranganathan (R)

Department of Kinesiology, Michigan State University, East Lansing, MI, USA.
Department of Mechanical Engineering, Michigan State University, East Lansing, USA.

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