The Effects of Virtual Reality Training on Function in Chronic Stroke Patients: A Systematic Review and Meta-Analysis

Area of Science:

• Rehabilitation Medicine
• Neuroscience
• Digital Health

Background:

• Stroke, or cerebrovascular accident (CVA), frequently results in long-term motor deficits.
• Restoring limb function is crucial for independence and quality of life in chronic stroke patients.
• Traditional rehabilitation methods may have limitations in engagement and accessibility.

Purpose of the Study:

• To conduct a meta-analysis evaluating the efficacy of virtual reality (VR) training for improving lower limb, upper limb, and overall function in chronic stroke patients.
• To quantify the effect size of VR interventions on various functional outcomes.

Main Methods:

• A systematic meta-analysis was performed using studies from OVID, PubMed, and EMBASE.
• Search terms included "cerebrovascular accident (CVA)", "stroke", and "virtual reality".
• Twenty-one studies were selected, and their quality was assessed using the PEDro scale.

Main Results:

• The overall effect size for VR rehabilitation programs was 0.440, indicating a moderate effect.
• VR demonstrated significant effects on upper limb function (0.431), lower limb function (0.424), and overall function (0.545).
• VR was most effective for improving muscle tension, muscle strength, activities of daily living (ADL), joint range of motion, gait, balance, and kinematics.

Conclusions:

• Virtual reality (VR) training is an effective intervention for enhancing function in chronic stroke patients.
• VR yields comparable benefits for both lower and upper limb function recovery.
• The findings support VR as a valuable tool in stroke rehabilitation.