Stroke Clinical Trial
Official title:
Neural Operant Conditioning to Improve Walking After Stroke
The goal of this clinical trial is to learn if operant conditioning can reduce spasticity in order to improve walking in stroke patient. The main questions it aims to answer are: - Can participants self-regulate reflex excitability - Can participants self-regulate reflex, reduce spasticity and improve walking Participants will undergo surface stimulation to evoke spinal reflexes and will be asked to control these reflexes therefore reducing spasticity. Researchers will compare result to able bodied participants to see if [insert effects]
Status | Recruiting |
Enrollment | 60 |
Est. completion date | May 31, 2028 |
Est. primary completion date | May 31, 2027 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: 1. Sign and date consent form 2. At least 3 months since stroke event 3. Over 18 years of age at time of eligibility 4. Ability to stand upright and walk for at least 5 minutes 5. Premorbidly independent 6. Mild to moderate gait impairment 7. Reduced knee flexion during walking relative to the unimpaired side 8. Unilateral hemiparesis of the lower limbs 9. Ability to evoke muscle responses through peripheral nerve stimulation, spinal cord stimulation, and transcranial magnetic stimulation 10. Medically stable 11. Skin intact on hemiparetic leg, abdomen, and scalp 12. Ability to evoke muscle responses and/or reflex responses through peripheral nerve stimulation, spinal cord stimulation, and/or transcranial magnetic stimulation Exclusion Criteria: 1. Co-existing neurological condition other than prior stroke involving the hemiparetic lower limb (e.g., peripheral nerve injury, PD, SCI, TBI, MS). 2. History of lower limb musculoskeletal injury 3. Functionally relevant osteoarthritis and weight bearing restriction 4. Functionally relevant polyneuropathy resulting in lack of sensation in the lower leg 5. Functionally relevant cognitive impairment 6. Functionally relevant vision impairment 7. Pregnant 8. Botox injection to the ipsilateral leg in the last 12 weeks or taking oral anti-spasticity medications 9. Taking part in physical therapy for any walking-related impairment 10. Cardiac pacemaker or other implanted electronic systems 11. Uncontrolled seizure disorder 12. Use of seizure lowering threshold medications and the discretion of the study physician 13. Deficits in communication that interfere with reasonable study participation 14. Severely impaired cognition and communication 15. Severe lower limb pain |
Country | Name | City | State |
---|---|---|---|
United States | MetroHealth Medical Center | Cleveland | Ohio |
Lead Sponsor | Collaborator |
---|---|
MetroHealth Medical Center |
United States,
Akbas T, Kim K, Doyle K, Manella K, Lee R, Spicer P, Knikou M, Sulzer J. Rectus femoris hyperreflexia contributes to Stiff-Knee gait after stroke. J Neuroeng Rehabil. 2020 Aug 26;17(1):117. doi: 10.1186/s12984-020-00724-z. — View Citation
Burpee JL, Lewek MD. Biomechanical gait characteristics of naturally occurring unsuccessful foot clearance during swing in individuals with chronic stroke. Clin Biomech (Bristol, Avon). 2015 Dec;30(10):1102-7. doi: 10.1016/j.clinbiomech.2015.08.018. Epub 2015 Sep 2. — View Citation
Chen XY, Wolpaw JR. Operant conditioning of H-reflex in freely moving rats. J Neurophysiol. 1995 Jan;73(1):411-5. doi: 10.1152/jn.1995.73.1.411. — View Citation
Dehnadi Moghadam A, Hasanzadeh H, Dehnadi Moghadam F. Evaluation of the Effect of Intranasal Lidocaine in the Treatment of Spasticity in Patients with Traumatic Brain Injury. Anesth Pain Med. 2021 Aug 15;11(4):e115849. doi: 10.5812/aapm.115849. eCollection 2021 Aug. — View Citation
Li S, Francisco GE, Zhou P. Post-stroke Hemiplegic Gait: New Perspective and Insights. Front Physiol. 2018 Aug 2;9:1021. doi: 10.3389/fphys.2018.01021. eCollection 2018. — View Citation
Li S, Francisco GE. New insights into the pathophysiology of post-stroke spasticity. Front Hum Neurosci. 2015 Apr 10;9:192. doi: 10.3389/fnhum.2015.00192. eCollection 2015. — View Citation
Navarrete-Opazo AA, Gonzalez W, Nahuelhual P. Effectiveness of Oral Baclofen in the Treatment of Spasticity in Children and Adolescents With Cerebral Palsy. Arch Phys Med Rehabil. 2016 Apr;97(4):604-618. doi: 10.1016/j.apmr.2015.08.417. Epub 2015 Aug 28. — View Citation
Stoquart GG, Detrembleur C, Palumbo S, Deltombe T, Lejeune TM. Effect of botulinum toxin injection in the rectus femoris on stiff-knee gait in people with stroke: a prospective observational study. Arch Phys Med Rehabil. 2008 Jan;89(1):56-61. doi: 10.1016/j.apmr.2007.08.131. — View Citation
Thompson AK, Chen XY, Wolpaw JR. Acquisition of a simple motor skill: task-dependent adaptation plus long-term change in the human soleus H-reflex. J Neurosci. 2009 May 6;29(18):5784-92. doi: 10.1523/JNEUROSCI.4326-08.2009. — View Citation
Wolpaw JR, Braitman DJ, Seegal RF. Adaptive plasticity in primate spinal stretch reflex: initial development. J Neurophysiol. 1983 Dec;50(6):1296-311. doi: 10.1152/jn.1983.50.6.1296. — View Citation
Wolpaw JR, Lee CL. Motoneuron response to dorsal root stimulation in anesthetized monkeys after spinal cord transection. Exp Brain Res. 1987;68(2):428-33. doi: 10.1007/BF00248809. — View Citation
* Note: There are 11 references in all — Click here to view all references
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Surface electromyographic recording of leg muscles | Recording electrical activity of leg muscles during walking in response to peripheral nerve stimulation | baseline, week 6 -mid-treatment, week 12 - end of treatment, 4-week post treatment, 12 weeks post treatment, 24 weeks post treatment | |
Secondary | 10 meter walk test | 10 meter walk test with collection of gait kinematics captured using an inertial motion capture camera system | baseline, week 6 -mid-treatment, week 12 - end of treatment, 4-week post treatment, 12 weeks post treatment, 24 weeks post treatment | |
Secondary | quadriceps pendulum test | This is a method of evaluating spasticity using gravity to provoke the muscular stretch reflex allowing for the collection of joint angle data. This data will aid in assessing changes in joint angles as a result of training. | baseline, week 6 -mid-treatment, week 12 - end of treatment, 4-week post treatment, 12 weeks post treatment, 24 weeks post treatment | |
Secondary | Five Times Sit to Stand Test | measures lower extremity functional strength. This test will measure your leg strength by asking you to sit down and stand up from a chair 5 times as fast as possible. | baseline, week 6 -mid-treatment, week 12 - end of treatment, 4-week post treatment, 12 weeks post treatment, 24 weeks post treatment | |
Secondary | TMS | non-invasive brain stimulation device, will be used to elicit a motor evoked response in participants via low frequency stimulation to the cortical regions associated with the muscles being investigated. This approach will test the integrity of the participant's CST in relation to the intervention and assessments being conducted | Baseline, Week 12 - end of treatment |
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