Corticospinal Function After Spinal Cord Injury
Last updated on July 2021Recruitment
- Recruitment Status
- Recruiting
- Estimated Enrollment
- Same as current
Summary
- Conditions
- Spinal Cord Injury
- Type
- Interventional
- Phase
- Not Applicable
- Design
- Allocation: RandomizedIntervention Model: Crossover AssignmentMasking: None (Open Label)Primary Purpose: Diagnostic
Participation Requirements
- Age
- Between 18 years and 85 years
- Gender
- Both males and females
Description
This study will determine the temporal organization of corticospinal volleys during reach and grasp movements. Multiple descending volleys in the corticospinal tract generate multiple peaks in muscle responses (indirect (I)-waves). I-waves are a mechanism by which corticospinal neurons are transynap...
This study will determine the temporal organization of corticospinal volleys during reach and grasp movements. Multiple descending volleys in the corticospinal tract generate multiple peaks in muscle responses (indirect (I)-waves). I-waves are a mechanism by which corticospinal neurons are transynaptically activated at periodic intervals of ~1.5 ms. This periodic activation contributes to the recruitment of spinal motoneurons and generation of movement. we will use paired-TMS to examine I-waves in surface EMG recordings from upper-limb muscles during reach and grasp movements. We will also identify motor cortical maps of upper-limb muscles involved in reach and grasp movements. We will use TMS guided by a frameless neuronavigation system to define the size and location of motor cortical maps of upper-limb muscles during reach and grasp movements. We will be able to determine overlaps and functional interactions between distal and proximal arm motor cortical representations. Our preliminary data shows that finger and biceps cortical maps largely overlap during reach and grasp movements in controls but considerable less in patients
Tracking Information
- NCT #
- NCT02451683
- Collaborators
- National Institute of Neurological Disorders and Stroke (NINDS)
- Investigators
- Principal Investigator: Monica Perez, PT PhD Shirley Ryan AbilityLab