Smartphone-Based Semi-Immersive Virtual Reality Enhances Upper Extremity Function in Subacute Stroke: A Randomized...

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Digital Health

Background:

• Upper extremity (UE) recovery in subacute stroke patients often stalls with conventional physical therapy (CPT).
• Smartphone-based virtual reality (VR) offers a cost-effective, semi-immersive method to potentially improve task-specific training and neuroplasticity.
• Subacute stroke patients with moderate UE impairment typically experience plateaued recovery.

Purpose of the Study:

• To evaluate if augmenting CPT with smartphone-based VR enhances UE function compared to CPT alone.
• To investigate the efficacy of VR-integrated rehabilitation for stroke recovery.

Main Methods:

• Fifty-seven participants with subacute stroke and moderate UE impairment were randomized into two groups.
• The experimental group received CPT plus smartphone-based VR; the control group received CPT alone.
• Intervention lasted six weeks, with five sessions per week, assessing motor impairment (FMA-UE), dexterity (Purdue Pegboard Test), and grip strength.

Main Results:

• Both groups showed significant improvements in UE function (p < 0.001).
• The experimental group (CPT + VR) demonstrated statistically superior improvements across all measured outcomes.
• Large effect sizes were observed for the VR-augmented group, indicating substantial benefits.

Conclusions:

• Smartphone-based VR, utilizing semi-immersive, gaze-driven interactions, significantly enhances UE recovery post-stroke.
• This VR approach is a scalable and effective adjunct to traditional rehabilitation strategies.
• VR integration shows promise for improving neuroplasticity and functional outcomes in stroke survivors.