Virtual Reality's Impact on Upper Limb Function in Post-stroke Patients

Study Results

Results pending

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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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-03-31

Study Completion Date

2027-11-30

Brief Summary

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Stroke rank second among the top causes of death, affecting millions of people in the worldwide. Approximately 70-80% survivors of stroke could experience various levels of upper limb motor impairments, which seriously affects the activities of daily life and cause serious physical and mental burden to patients and their families. As bottleneck effect in traditional rehabilitation techniques become apparent, a number of emerging technologies are being used in rehabilitation treatment in an attempt to break down this barrier.Studies have shown that virtual reality (VR) training can effectively promote the remodeling of the central nervous system and has become an important research direction for motor function rehabilitation.However, most current studies still focus on evaluating the overall intervention effect of VR, with little examination of its intrinsic properties and a lack of exploration of the sense of ownership (SOO) and agency (SOA).

Hence, this study conducted different VR interventions on stroke patients to evaluate the effects of the intrinsic properties of VR and the body illusion it produces on the rehabilitation of their upper limb motor function.

This study is a single-blind randomized controlled trial. A total of 120 participants will be enrolled and divided into a control group, an interactive VR group, and an immersive and interactive VR group. All groups will be tested on the virtual hand illusion before the intervention. The intervention will last for a fortnight, four times a week for one hour each time. Assessment will be conducted before the intervention, at the end of the intervention, and at week 6 for follow-up. The primary outcome measure is the "Fugl-Meyer Assessment of the Upper Extremity (FMA-UE)". The secondary outcome measures are "SOO questionnaire", "proprioceptive drift scale", "action research arm test (ARAT)", "NIH stroke scale (NIHSS)", "mini mental state examination (MMSE)", "electromyography (EMG)", "electroencephalography (EEG)" and "functional Magnetic Resonance Imaging (fMRI)".

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Detailed Description

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Conditions

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Stroke

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Immersive and Interactive VR group

The design of this group combines rich immersive VR scenes and specific interactive tasks. Specifically, there were two VR scenes: (1) Natural scenery: The subjects were on a quiet forest path, surrounded by tall trees, birdsong, and the sound of gurgling water. In this scene, the program sets the virtual hand on the hemiplegic side to perform the task of grasping the sphericalfruit on the tree. Each time the fruit is grasped for 3 seconds, and then released for 3 seconds; (2) City park: The subject was located in a city park surrounded by the sounds of children playing and the background sounds of the natural environment. In this scenario, the program sets the virtual hand on the hemiplegic side to carry out the task of grasping a ping-pong ball in the park, holding it for 3 seconds at a time and then releasing it for 3 seconds. To improve the actual participation, a real object the same as the virtual object will be provided in the real world, and subjects will be instructed to use

Group Type EXPERIMENTAL

virtual reality (VR) head mounted display

Intervention Type DEVICE

This group of subjects received immersive and interactive VR training, which combined rich immersive VR scenes with specific interactive tasks, including two VR scenes. Task selection was based on the subjects' upper limb functional performance, and experienced therapists provided guidance and monitoring, and adjusted the tasks when necessary.

Interactive VR group

The VR scene in this group focuses on basic motor interaction, and the virtual background is the same as the control group. The program will set the virtual hand on the hemiplegic side to complete specific interaction tasks, such as grasping the virtual ball, holding the virtual ball for 3 seconds each time, and then releasing it for 3 seconds. At the same time, a real sphere of the same size and color as the virtual ball will be provided in the real world, and the subject will be instructed to perform the same movement simultaneously as much as possible with the real hand on the hemiplegic side.

Group Type ACTIVE_COMPARATOR

virtual reality (VR) head mounted display

Intervention Type DEVICE

This group of subjects received immersive and interactive VR training, which combined rich immersive VR scenes with specific interactive tasks, including two VR scenes. Task selection was based on the subjects' upper limb functional performance, and experienced therapists provided guidance and monitoring, and adjusted the tasks when necessary.

Control group

subjects were asked to wear an HTC Vive HMD and enter a simple virtual testing environment. The environment has no complex narrative or visual effects, nor does it emphasize specific interaction tasks. It only includes a realistic virtual hand model of the hemiplegic side and the same virtual background as the real experiment, both are presented from a first-person perspective. The program will set the virtual hand on the hemiplegic side to perform simple and repetitive grasping movements. Each fist hold lasts for 3 seconds and then releases for 3 seconds. At the same time, the subject will be instructed to perform the same movement simultaneously with the real hand on the hemiplegic side as much as possible.

Group Type ACTIVE_COMPARATOR

virtual reality (VR) head mounted display

Intervention Type DEVICE

This group of subjects received immersive and interactive VR training, which combined rich immersive VR scenes with specific interactive tasks, including two VR scenes. Task selection was based on the subjects' upper limb functional performance, and experienced therapists provided guidance and monitoring, and adjusted the tasks when necessary.

Interventions

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virtual reality (VR) head mounted display

This group of subjects received immersive and interactive VR training, which combined rich immersive VR scenes with specific interactive tasks, including two VR scenes. Task selection was based on the subjects' upper limb functional performance, and experienced therapists provided guidance and monitoring, and adjusted the tasks when necessary.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* First episode of stroke, hemorrhagic or ischemic, confirmed by computed tomography or magnetic resonance imaging of the brain;
* Age 40-80 years, either male or female;
* 3-12 months since stroke occurrence;
* Mild-to-moderate or moderate-to-severe upper extremity impairment, with a FMA-UE score between 16 and 53;
* Basic ability to communicate and comprehend the research instructions, with a score of 21 and above on the MMSE scale;
* Agreement to participate in the study, with an informed consent form duly signed by the patient or a family member.

Exclusion Criteria

* The presence of ferromagnetic metals implanted in the body;
* Visual or hearing deficits;
* Unstable medical conditions;
* History of receiving similar VR training in the past;
* A history of myasthenia gravis, multiple sclerosis, muscular dystrophy, or other diseases that may cause upper limb movement disorders.

Minimum Eligible Age

40 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No