NCT00334230

Brief Summary

This study, conducted in collaboration with the National Rehabilitation Hospital (NRH) in Washington, D.C., will look at changes in brain activation and brain responses that occur with gait (walking) training. Brain images and responses of healthy subjects are compared with those of patients. Healthy normal volunteers and people who have had a stroke within 3 months of starting the study may be eligible for this study. Candidates must be between 18 and 80 years of age, and patients must participate in NRH's walking study. Stroke patients participate in all three study sessions described below. The first session takes place before patients start the NRH walking training study, the second session takes place at completion of the NRH walking study, and the third session takes place 3 months after completing the NRH study. Healthy control subjects complete only the procedures in session 3. Session 1 Day 1: Neurological examination and questionnaire to evaluate memory and attention. Day 2: Motor testing with transcranial magnetic stimulation (TMS). For this test, a wire coil is held on the subject's scalp. A brief electrical current passes through the coil, creating a magnetic pulse that stimulates the brain. During the stimulation, the subject may be asked to tense certain muscles slightly or perform other simple actions to help position the coil properly. The stimulation may cause a twitch in the leg muscles, and the subject may hear a click and feel a pulling sensation on the skin under the coil. Session 2 Day 1: Functional MRI (fMRI). MRI uses a magnetic field and radio waves to produce images of body tissues and organs. The subject lies on a table that can slide in and out of the scanner (a narrow cylinder), wearing earplugs to muffle loud knocking and thumping sounds that occur during the scanning process. Scanning time varies from 20 minutes to 3 hours, with most scans lasting 45 and 90 minutes. Subjects may be asked to lie still for up to a few minutes at a time and to perform movements of their foot. Day 2: motor testing with TMS. Session 3 Day 1: fMRI Day 2: motor testing with TMS

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
58

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jun 2006

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 2, 2006

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

June 6, 2006

Completed
1 day until next milestone

First Posted

Study publicly available on registry

June 7, 2006

Completed
1.9 years until next milestone

Study Completion

Last participant's last visit for all outcomes

April 21, 2008

Completed
Last Updated

July 2, 2017

Status Verified

April 21, 2008

First QC Date

June 6, 2006

Last Update Submit

June 30, 2017

Conditions

Keywords

Functional Magnetic Resonance Imaging (fMRI)Transcranial Magnetic Stimulation (TMS)LocomotionCortical ReorganizationRehabilitationfMRIStrokeHealthy VolunteerHV

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Stroke Patients
  • May be eligible for this research study if they:
  • qualified for participation in the NRH locomotor protocol
  • are between 18 and 80 years old
  • have not had any other strokes
  • had a stroke more than 3 months ago
  • had a stroke that affected one side of the brain
  • are able to perform the tasks required in the study with the paretic or non-paretic foot
  • are willing and able to give consent
  • Healthy Volunteers
  • May be eligible for the research study if they:
  • are between 18 and 80 years old
  • are able to perform the tasks required in the study
  • are willing and able to give consent
  • a normal physical and neurological examination

You may not qualify if:

  • Sub-acute stroke patients will be not be eligible for the study if they:
  • are unable to perform the behavioral tasks with the non-paretic foot,
  • have had more than one stroke,
  • have a history of alcohol or drug abuse or severe language disturbances (aphasia)
  • have uncontrolled medical problems, such as heart, lung or kidney disease, epilepsy or diabetes mellitus,
  • are pregnant. Since the effects of MRI and TMS on fetal development are unknown, women of childbearing age will have pregnancy test prior to the study and pregnant women will be excluded.
  • have a cardiac pacemaker, intracardiac lines, implanted medication pumps, neural stimulators, metal in the cranium, with the exception or dental braces in the mouth.
  • simultaneous participation in any other intervention protocol for stroke.
  • have with serious cognitive deficits (defined as equivalent to a mini-mental state exam score (MMSE) of 23 or less)
  • Healthy volunteers will not be eligible for the study if they:
  • are unable to perform the tasks,
  • have a history of alcohol or drug abuse or severe language disturbances or serious cognitive deficits,
  • have uncontrolled medical problems, such as heart, lung or kidney disease, epilepsy or diabetes mellitus,
  • are pregnant. Since the effects of MRI and TMS on fetal development are unknown, women of childbearing age will have pregnancy test prior to the study and pregnant women will be excluded.
  • have a cardiac pacemaker, intracardiac lines, implanted medication pumps, neural stimulators, metal in the cranium except in the mouth, dental braces.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, Maryland, 20892, United States

Location

Related Publications (1)

  • Bayona NA, Bitensky J, Teasell R. Plasticity and reorganization of the uninjured brain. Top Stroke Rehabil. 2005 Summer;12(3):1-10. doi: 10.1310/A422-G91U-Q4HB-86XC.

    PMID: 16110423BACKGROUND

MeSH Terms

Conditions

Stroke

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Study Design

Study Type
observational
Sponsor Type
NIH

Study Record Dates

First Submitted

June 6, 2006

First Posted

June 7, 2006

Study Start

June 2, 2006

Study Completion

April 21, 2008

Last Updated

July 2, 2017

Record last verified: 2008-04-21

Locations