Physiologic Studies of Spasticity
Public ClinicalTrials.gov record NCT00014976. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Spasticity: Physiologic Studies
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will provide information about changes that occur in the motor neurons of the spinal cord (the nerve cells that control the muscles) when the motor cortex (the region of the brain that controls movement) is unable to send messages to the spinal cord and muscles in the normal way. This information will help elucidate how the nervous system adapts after injury or disease of the motor cortex. Healthy adult volunteers and adults with a spasticity disorder and moderate weakness may be eligible for this study. Patients will be screened with a medical history, physical examination and diagnostic studies as needed. Healthy volunteers will have a neurological examination. Muscle weakness and spasticity will be evaluated in both groups of subjects. All participants will have electromyography (measurement of electrical activity in muscles) during nerve stimulation and transcranial magnetic stimulation, described below. (Some patients, such as those with a pacemaker or implanted medication pumps, metal objects in the eye, history of epilepsy and others, will not have magnetic stimulation.) Electromyography - The electrical activity of muscles will be measured either by 1) using metal electrodes taped to the skin overlying a muscle, or 2) using thin wires inserted into the muscle through a needle. Nerve stimulation - The nerves will be stimulated by applying a small electrical pulse through metal disks on the skin of the arm or leg. Transcranial magnetic stimulation - A brief electrical current is passed through a wire coil placed on the scalp. This creates a magnetic pulse, which stimulates the brain. During the test, the participant may be asked to tense certain muscles slightly or perform other simple actions. Nerve block - Some patients will have a nerve block of one of the nerves in the arm. For this procedure, a local anesthetic is injected under the skin to produce numbness and weakness in some arm muscles.
Study identification
- NCT ID
- NCT00014976
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 48 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 21 Years to 80 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Apr 12, 2001
- Primary completion
- Not listed
- Completion
- Oct 31, 2010
- Last update posted
- Jul 1, 2017
2001 – 2010
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Institutes of Health Clinical Center, 9000 Rockville Pike | Bethesda | Maryland | 20892 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00014976, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 1, 2017 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00014976 live on ClinicalTrials.gov.