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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04947865
Other study ID # 2017-01-0022
Secondary ID R01HD100416
Status Recruiting
Phase N/A
First received
Last updated
Start date June 11, 2021
Est. completion date June 11, 2026

Study information

Verified date April 2024
Source MetroHealth Medical Center
Contact James Sulzer, PhD
Phone 5125419036
Email jss280@case.edu
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to examine the reflex excitability of the rectus femoris in individuals with and without post-stroke Stiff-Knee gait. We use electrical stimulation of the peripheral nerve innervating the rectus femoris for a well-controlled reflex stimulus. We are investigating whether reflex excitability of the rectus femoris correlates with gait kinematics.


Description:

The purpose of this study is to investigate the role of hyperreflexia in post-stroke Stiff-Knee gait function. In one aim,


Recruitment information / eligibility

Status Recruiting
Enrollment 60
Est. completion date June 11, 2026
Est. primary completion date June 11, 2025
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion criteria: - Aged at least 18 - Premorbidly independent - If post-stroke, mild to moderate impairment determined by standard practices per the physical therapist - Able to continuously walk for 30 minutes - If post-stroke, reduced knee flexion during walking relative to unimpaired side - If post-stroke, hemiparesis - Ability to provide informed consent Exclusion criteria: - No history of serious lower limb musculoskeletal injury - No functionally relevant osteoarthritis and weight-bearing restrictions - No functionally relevant polyneuropathy - No functionally relevant cognitive impairment - No functionally relevant vision impairment

Study Design


Intervention

Other:
Peripheral nerve stimulation
Electrical stimulation of peripheral nerves to measure resulting gait kinematics and surface muscle activity
Device:
Commercial knee brace
Knee brace used to limit knee mobility in healthy individuals to imitate stroke survivors and measure resulting gait kinematics and surface muscle activity.

Locations

Country Name City State
United States MetroHealth Medical Center Cleveland Ohio

Sponsors (2)

Lead Sponsor Collaborator
MetroHealth Medical Center Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Surface electromyographic recording of leg muscles during different conditions Recording electrical activity of leg muscles during walking in response to peripheral nerve stimulation 1 hour
Secondary Circumduction measure Hip abduction joint motion measured with motion capture 1 hour
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