Neuromodulation of Ankle Muscles in Persons With SCI

Status Terminated

Clinical Trial Summary

The ability to voluntarily move the ankles is important for walking. After spinal cord injury (SCI), this ability is impaired because of changes in the communication between the brain, spinal cord, and body. Whole body vibration (WBV) is a treatment that increases voluntary muscle control and decreases uncontrollable muscle movement in people with SCI. The purpose of this study is to understand how WBV can impact ankle control and uncontrollable muscle movement.

Clinical Trial Description

Spinal cord injury can result in impaired walking ability and decreased independence in daily activities such as standing and transfers. The ability to voluntarily control the ankle muscles is an important component of walking that is impacted by changes in the corticospinal tract and the spinal reflex circuits. These changes have been associated with the inability to dorsiflex the ankle during swing phase (foot drop) and uncontrollable muscle spasms and stiffness in the ankle during terminal stance (spasticity), as well as during transfers. In order to improve functional outcomes and further develop rehabilitation techniques, the underlying contributions of the corticospinal tract and spinal reflex circuit to ankle control needs to be better understood. Non-invasive tools that target the corticospinal and spinal reflex circuit are being used in clinical settings in order to improve functional outcomes in persons with spinal cord injury. Whole body vibration (WBV) is a non-invasive tool that has been shown to increase voluntary motor output and decrease spasticity in persons with spinal cord injury. These improvements in function may be due to changes in the corticospinal tract and spinal reflex circuits. In order to determine the relative contributions of the corticospinal tract and spinal reflex circuits to increased voluntary ankle control and decreased spasticity, we will measure changes in the corticospinal tract and spinal reflex excitability before and after a single session of vibration. We will then determine which change (corticospinal or spinal) contributes more to increased voluntary ankle control and decreased spasticity. This information will help guide future research to further improve walking ability in persons with spinal cord injury. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04238013
Study type	Interventional
Source	Shepherd Center, Atlanta GA
Contact
Status	Terminated
Phase	N/A
Start date	July 6, 2021
Completion date	July 9, 2021

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.