Say 'Bend Arm' to recover: Voice-Activated robot may boost stroke rehab
NCT ID NCT07398131
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether using voice commands to control a robotic arm exoskeleton can improve upper limb recovery in stroke survivors. 32 participants will either use a voice-triggered robot (by saying commands like 'bend arm' while imagining the movement) or receive standard passive robot therapy. The goal is to see if the active, voice-driven approach leads to better arm function and brain-to-muscle signal recovery.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- single-joint robot (Active Voice-Controlled Mode)
- What this could lead to
- If it works, this could point toward a more engaging and effective way to regain arm function after a stroke.
- What could go wrong
- This is a small, early-stage study with only 32 participants, so results may not apply to everyone. The improvement over standard therapy may be small or none.
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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About 32 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Oct 2026
An estimate. End dates often move.
- 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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20 to 85 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: * Ischemic or hemorrhagic stroke diagnosed by CT or MRI * Stroke onset occurred at least 1 month prior to enrollment * Aged 20 to 80 years * Moderate to severe upper limb impairment (Fugl-Meyer Assessment-Upper Extremity score between 13 and 47) * Cognitive function sufficient to follow instructions (MMSE score \> 20) * Stable medical condition with no severe pain in the affected upper limb Exclusion Criteria: * Severe spasticity of the affected upper limb (Modified Ashworth Scale score \> 2) * History of other neurological diseases (e.g., Parkinson's disease, brain tumor) * Serious orthopedic conditions or skin lesions on the affected upper limb that prevent robot use * Unstable epilepsy or severe psychiatric disorders * Pregnancy
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.