Scientists uncover how fast walking and zaps help stroke survivors walk better
NCT ID NCT04380454
First seen Jun 26, 2026 · Last updated Sep 09, 2026 · Updated 5 times
Summary
This study looked at how fast treadmill walking, with or without a small electrical stimulation to the ankle muscles, helps people who have had a stroke walk better. Fifty-five participants who were at least six months past their stroke took part. The goal was to understand the body and brain changes behind the improvements, so future treatments can be tailored to each person.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this research could lead to more personalized and effective gait rehabilitation programs for stroke survivors.
- What could go wrong
- This is a completed observational study, not a treatment trial. The findings may not directly translate into new therapies or benefit all stroke patients.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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55 people
The number who actually took part.
- Started
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Mar 2021
- Finished
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Oct 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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35 to 90 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * at least 6 months since stroke * single cortical or subcortical ischemic stroke * able to walk 10-meters with or without assistive device * sufficient cardiovascular health and ankle stability to walk on treadmill for 2-minutes at self-selected speed without orthosis * resting heart rate 40-100 bpm Exclusion Criteria: * hemorrhagic stroke * cerebellar signs (ataxic ("drunken") gait or decreased coordination during rapid alternating hand or foot movements * score of \>1 on question 1b and \>0 on question 1c on NIH Stroke Scale * inability to communicate with investigators * musculoskeletal conditions or pain that limit walking * neglect/hemianopia, or unexplained dizziness in last 6 months * neurologic conditions or diagnoses other than stroke * lack of sensation in lower limb affected by stroke * any medical diagnosis that would hinder the participant from completing the experimental trial * diabetes not controlled by medication or causing risk for participation in exercise programs * additional exclusion criteria due to contra-indications to TMS (measurement of corticospinal excitability) are: history of seizures, metal implants in the head or face, history of recurring or severe headaches/migraine, headache within the past 24 hours, presence of skull abnormalities or fractures, hemorrhagic stroke, history of dizziness, syncope, nausea, or loss of consciousness in the past 6 months
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Emory University Hospital
Atlanta, Georgia, 30322, United States
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