Cognition and Motor Learning Post-stroke

NCT ID: NCT04829071

Last Updated: 2025-11-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

EARLY_PHASE1

Total Enrollment

65 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-01-16

Study Completion Date

2026-12-14

Brief Summary

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This project seeks to determine how post-stroke cognitive impairment moderates motor learning during walking in older adults with chronic stroke and identify brain structural markers that mediate this relationship. The chosen experimental design integrates biomechanical analyses, neuropsychological assessments, and brain imaging techniques to determine the impact of post-stroke cognitive impairment severity on two forms of motor learning (explicit and implicit) and examine the role of the dorsolateral prefrontal cortex in the relationship between cognition and explicit motor learning. Ultimately, this work may lead to the development of a more comprehensive, effective treatment approach to improve walking dysfunction in older adults post-stroke.

Detailed Description

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Conditions

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Stroke CVA (Cerebrovascular Accident)

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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Evaluating motor learning and brain structures post-stroke

We will use a single arm design to determine the impact of post-stroke cognitive impairment on two forms of motor learning (implicit and explicit) and evaluate the structural integrity of relevant brain structures in 65 individuals post stroke

Group Type EXPERIMENTAL

Explicit motor learning

Intervention Type BEHAVIORAL

Participants will be provided with visual feedback of their right and left step lengths on a screen in front of a treadmill.

Implicit motor learning

Intervention Type BEHAVIORAL

Participants will walk on a treadmill that drives their right and left legs to move at two different speeds.

Interventions

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Explicit motor learning

Participants will be provided with visual feedback of their right and left step lengths on a screen in front of a treadmill.

Intervention Type BEHAVIORAL

Implicit motor learning

Participants will walk on a treadmill that drives their right and left legs to move at two different speeds.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Unilateral stroke
* Stroke occurred more than 6 months prior
* Paresis confined to one side
* Independently ambulatory (including the use of assistive devices)
* Able to walk for 5 minutes without stopping
* Answers no to all general health questions on the PAR-Q+
* Willingness to complete study procedures

Exclusion Criteria

* Brainstem or cerebellar stroke
* Aphasia (expressive, receptive, or global)
* Any major musculoskeletal or non-stroke neurological condition that interferes with the assessment of sensorimotor or cognitive function
* Metal in the head (except in the mouth), implanted cranial or thoracic devices that violate MRI safety regulations
* Uncontrolled hypertension (\>160/110mmHg)
* Concurrent physical therapy
* Claustrophobia
* Significant cognitive deficit or dementia (\<20 on MoCA)
* Inability to give informed consent
Minimum Eligible Age

45 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Southern California

OTHER

Sponsor Role lead

Responsible Party

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Kristan Leech

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Kristan Leech, PT, DPT, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Southern California

Locations

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Center for Health Professions

Los Angeles, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Kristan Leech, PT, DPT, PhD

Role: CONTACT

(323) 442-1583

Sarah Kettlety, MS

Role: CONTACT

(323) 442-1196

Facility Contacts

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Kristan Leech, PT, DPT, PhD

Role: primary

3124421583

Other Identifiers

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APP-21-00898

Identifier Type: -

Identifier Source: org_study_id

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