Proprioceptive Error Correction for Post-Stroke Upper Limb Rehabilitation
NCT ID: NCT07156955
Last Updated: 2025-10-06
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
NA
3 participants
INTERVENTIONAL
2025-10-13
2026-08-30
Brief Summary
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The human nervous system often receives mismatched information from vision and proprioception during upper limb control, resulting in conflicting sensory inputs that limit the effectiveness of motor learning. In other words, real-time sensory feedback - a critical component of motor learning in the nervous system - is not reliably delivered. Therefore, this study seeks to resolve sensory conflicts by providing additional sensory information through electrical stimulation, with the goal of dramatically improving the effectiveness of motor learning.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
CROSSOVER
TREATMENT
NONE
Study Groups
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Electrical stimulation cue first
Patients undergo three types of interventions, following one of two processes. Each process has its own protocol in the following order Electrical stimulation cue, Visual cue, and No cue or Electrical stimulation cue, No cue, and Visual cue.
Electrical stimulation cue
A single 30-minute session is provided. Electrodes are attached to the cubital fossa, and stimulation is delivered at a frequency that increases up to 70 Hz as the elbow joint approaches the target angle. Target angles are set between 0 degrees and 120 degrees, based on each participant's available range of motion determined during the initial assessment. Participants adjust their elbow joint angle to match the provided target angle using feedback from the electrical stimulation. When the elbow joint angle matches the target angle, the maximum frequency is applied to the cubital fossa. Participants match their elbow joint angle to the target angle based on the given frequency.
Visual stimulation cue
A single 30-minute session is provided. The difference between the current elbow joint angle and the pre-set target angle is displayed on a screen using two colored needles (a red needle for the target angle and a black needle for the current elbow joint angle). The target angle is set within each participant's available range of motion based on the initial assessment. Participants continue the intervention by adjusting their elbow angle using the visual feedback. When the elbow joint angle matches the target angle, the two needles overlap. Based on this visual cue, participants adjust their elbow joint angle to match the target angle.
No cue
A single 30-minute session is provided. The target angle is determined within each participant's available range of motion based on the initial assessment. Throughout the session, participants receive verbal feedback from the assessor and adjust their elbow joint angle accordingly to match the target angle.
Visual stimulation cue first
Patients undergo three types of interventions, following one of two processes. Each process has its own protocol in the following order: Visual cue, Electrical stimulation cue, and No cue, or Visual cue, No cue, and Electrical stimulation cue.
Electrical stimulation cue
A single 30-minute session is provided. Electrodes are attached to the cubital fossa, and stimulation is delivered at a frequency that increases up to 70 Hz as the elbow joint approaches the target angle. Target angles are set between 0 degrees and 120 degrees, based on each participant's available range of motion determined during the initial assessment. Participants adjust their elbow joint angle to match the provided target angle using feedback from the electrical stimulation. When the elbow joint angle matches the target angle, the maximum frequency is applied to the cubital fossa. Participants match their elbow joint angle to the target angle based on the given frequency.
Visual stimulation cue
A single 30-minute session is provided. The difference between the current elbow joint angle and the pre-set target angle is displayed on a screen using two colored needles (a red needle for the target angle and a black needle for the current elbow joint angle). The target angle is set within each participant's available range of motion based on the initial assessment. Participants continue the intervention by adjusting their elbow angle using the visual feedback. When the elbow joint angle matches the target angle, the two needles overlap. Based on this visual cue, participants adjust their elbow joint angle to match the target angle.
No cue
A single 30-minute session is provided. The target angle is determined within each participant's available range of motion based on the initial assessment. Throughout the session, participants receive verbal feedback from the assessor and adjust their elbow joint angle accordingly to match the target angle.
No cue first
Patients undergo three types of interventions, following one of two processes. Each process has its own protocol in the following order: No cue, Electrical stimulation cue, and Visual cue, or No cue, Visual cue, and Electrical stimulation cue.
Electrical stimulation cue
A single 30-minute session is provided. Electrodes are attached to the cubital fossa, and stimulation is delivered at a frequency that increases up to 70 Hz as the elbow joint approaches the target angle. Target angles are set between 0 degrees and 120 degrees, based on each participant's available range of motion determined during the initial assessment. Participants adjust their elbow joint angle to match the provided target angle using feedback from the electrical stimulation. When the elbow joint angle matches the target angle, the maximum frequency is applied to the cubital fossa. Participants match their elbow joint angle to the target angle based on the given frequency.
Visual stimulation cue
A single 30-minute session is provided. The difference between the current elbow joint angle and the pre-set target angle is displayed on a screen using two colored needles (a red needle for the target angle and a black needle for the current elbow joint angle). The target angle is set within each participant's available range of motion based on the initial assessment. Participants continue the intervention by adjusting their elbow angle using the visual feedback. When the elbow joint angle matches the target angle, the two needles overlap. Based on this visual cue, participants adjust their elbow joint angle to match the target angle.
No cue
A single 30-minute session is provided. The target angle is determined within each participant's available range of motion based on the initial assessment. Throughout the session, participants receive verbal feedback from the assessor and adjust their elbow joint angle accordingly to match the target angle.
Only electrical stimulation cue
Patients undergo one types of interventions which is the Electrical stimulation cue.
Electrical stimulation cue
A single 30-minute session is provided. Electrodes are attached to the cubital fossa, and stimulation is delivered at a frequency that increases up to 70 Hz as the elbow joint approaches the target angle. Target angles are set between 0 degrees and 120 degrees, based on each participant's available range of motion determined during the initial assessment. Participants adjust their elbow joint angle to match the provided target angle using feedback from the electrical stimulation. When the elbow joint angle matches the target angle, the maximum frequency is applied to the cubital fossa. Participants match their elbow joint angle to the target angle based on the given frequency.
Only visual stimulation cue
Patients undergo one types of interventions which is the Visual stimulation cue.
No cue
A single 30-minute session is provided. The target angle is determined within each participant's available range of motion based on the initial assessment. Throughout the session, participants receive verbal feedback from the assessor and adjust their elbow joint angle accordingly to match the target angle.
Only no cue
Patients undergo one types of interventions which is the No cue.
Visual stimulation cue
A single 30-minute session is provided. The difference between the current elbow joint angle and the pre-set target angle is displayed on a screen using two colored needles (a red needle for the target angle and a black needle for the current elbow joint angle). The target angle is set within each participant's available range of motion based on the initial assessment. Participants continue the intervention by adjusting their elbow angle using the visual feedback. When the elbow joint angle matches the target angle, the two needles overlap. Based on this visual cue, participants adjust their elbow joint angle to match the target angle.
Interventions
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Electrical stimulation cue
A single 30-minute session is provided. Electrodes are attached to the cubital fossa, and stimulation is delivered at a frequency that increases up to 70 Hz as the elbow joint approaches the target angle. Target angles are set between 0 degrees and 120 degrees, based on each participant's available range of motion determined during the initial assessment. Participants adjust their elbow joint angle to match the provided target angle using feedback from the electrical stimulation. When the elbow joint angle matches the target angle, the maximum frequency is applied to the cubital fossa. Participants match their elbow joint angle to the target angle based on the given frequency.
Visual stimulation cue
A single 30-minute session is provided. The difference between the current elbow joint angle and the pre-set target angle is displayed on a screen using two colored needles (a red needle for the target angle and a black needle for the current elbow joint angle). The target angle is set within each participant's available range of motion based on the initial assessment. Participants continue the intervention by adjusting their elbow angle using the visual feedback. When the elbow joint angle matches the target angle, the two needles overlap. Based on this visual cue, participants adjust their elbow joint angle to match the target angle.
No cue
A single 30-minute session is provided. The target angle is determined within each participant's available range of motion based on the initial assessment. Throughout the session, participants receive verbal feedback from the assessor and adjust their elbow joint angle accordingly to match the target angle.
Eligibility Criteria
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Inclusion Criteria
* Stroke confirmed by CT or MRI
* Stroke patients with proprioceptive sensory deficits
* Chronic stroke patients with onset at least 3 months prior
* Able to voluntarily flex and extend the elbow joint
* Age 19 years or older
* Provide written informed consent (participant or legal representative)
Exclusion Criteria
* Elbow joint contracture, spasticity, ataxia, musculoskeletal disorders, fractures, - non-healing ulcers, or open wounds
* Progressive or unstable stroke
* Presence of unilateral neglect
* Coexisting severe neurological disorders
* Major psychiatric disorders such as major depressive disorder, schizophrenia, bipolar disorder, or dementia Presence of a pacemaker
19 Years
ALL
No
Sponsors
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Sungkyunkwan University
OTHER
Responsible Party
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Hangue Park
Associate professor
Locations
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Shinchon Severance Rehabilitation Hospital
Seoul, Seoul, South Korea
Countries
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Central Contacts
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Facility Contacts
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Provided Documents
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Document Type: Study Protocol
Other Identifiers
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2025-06-075-001
Identifier Type: -
Identifier Source: org_study_id
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