Mechanisms of Walking Recovery After Stroke

November 26, 2018 updated by: Pierce Boyne, University of Cincinnati
Subjects with stroke will have behavioral testing and brain imaging before and after a 4-week control period and a 4-week exercise intervention.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Subjects with stroke will have behavioral testing and brain imaging before and after a 4-week control period and a 4-week exercise intervention using high-intensity interval training.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
10

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Ohio
      • Cincinnati, Ohio, United States, 45267
        • University of Cincinnati

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

30 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • age 30-90 years
  • unilateral stroke experienced >6 months prior to enrollment in middle cerebral artery (MCA) territory without complete disruption of the putamen on the lesion side
  • walking speed <= 1.0 m/s on the 10 meter walk test
  • able to walk 10m over ground with assistive devices as needed and no physical assistance

Exclusion Criteria:

  • MRI incompatibility (e.g. metallic or electronic implants, severe claustrophobia)
  • inability to perform mental imagery (time dependent motor imagery screening test [TDMI])
  • evidence of significant arrhythmia or myocardial ischemia on treadmill ECG stress test, or significant baseline ECG abnormalities that would make an exercise ECG uninterpretable
  • recent (<3 months) cardiopulmonary hospitalization
  • unable to communicate with investigators or correctly answer consent comprehension questions
  • significant ataxia or neglect (score of 2 on NIH stroke scale item 7 or 11)
  • severe lower extremity (LE) spasticity (Ashworth >2)
  • recent (<3 months) illicit drug or alcohol abuse or significant mental illness
  • major post-stroke depression (PHQ-9 ≥10) in the absence of medical management
  • participating in physical therapy or another interventional research study;
  • recent (<3 months) paretic LE botulinum toxin injection
  • concurrent progressive neurologic disorder or other major medical, orthopedic or peripheral vascular conditions that would limit improvement
  • pregnancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Arm 1
4-week control period with no intervention and 4-weeks of high-intensity interval training
Behavioral: No intervention
No intervention
Behavioral: High-intensity interval training
High-intensity walking exercise using bursts of concentrated effort alternated with recovery periods

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Walking Speed
Time Frame: Change from 4-weeks to 8-weeks
10-meter walk test
Change from 4-weeks to 8-weeks

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Gait Symmetry
Time Frame: baseline, 4 weeks, 8 weeks
Paretic step ratio
baseline, 4 weeks, 8 weeks
Metabolic Cost of Gait
Time Frame: baseline, 4 weeks, 8 weeks
oxygen consumption rate during comfortable speed gait
baseline, 4 weeks, 8 weeks
Aerobic Capacity
Time Frame: baseline, 4 weeks, 8 weeks
oxygen consumption rate during exercise testing
baseline, 4 weeks, 8 weeks
NIH Toolbox - Cognition Domain
Time Frame: baseline, 4 weeks, 8 weeks
baseline, 4 weeks, 8 weeks
NIH Toolbox Standing Balance Test
Time Frame: baseline, 4 weeks, 8 weeks
baseline, 4 weeks, 8 weeks
Stroke and Aphasia Quality of Life Scale
Time Frame: baseline, 4 weeks, 8 weeks
baseline, 4 weeks, 8 weeks
Brain Locomotor Network Activation
Time Frame: baseline, 4 weeks, 8 weeks
baseline, 4 weeks, 8 weeks
Brain Locomotor Network Connectivity
Time Frame: baseline, 4 weeks, 8 weeks
baseline, 4 weeks, 8 weeks
Walking Capacity
Time Frame: baseline, 4 weeks, 8 weeks
6-minute walk test
baseline, 4 weeks, 8 weeks
Daily Walking Activity
Time Frame: baseline, 4 weeks, 8 weeks
activity monitor
baseline, 4 weeks, 8 weeks
Walking Speed
Time Frame: baseline, 4 weeks, 8 weeks
10-meter walk test
baseline, 4 weeks, 8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Cincinnati

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Pierce Boyne, PT, DPT, NCS, University of Cincinnati

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 1, 2016

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2017

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 29, 2016

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 3, 2016

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 8, 2016

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 15, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 26, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2018

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2016-1916

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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