Virtual Reality Enhanced Exercise Training in Upper Limb Function of Patients With Stroke: Meta-Analytic Study

Area of Science:

• Neurorehabilitation
• Robotics and Virtual Reality
• Stroke Recovery

Background:

• Upper limb function recovery is vital for stroke survivors' independence.
• Virtual reality (VR) shows promise in enhancing rehabilitation, but its effectiveness is debated.

Purpose of the Study:

• To review factors influencing VR's impact on upper limb function post-stroke.
• To synthesize an optimal VR intervention protocol for stroke recovery.

Main Methods:

• Systematic review of 15 English-language studies from May 2022 onwards.
• Data extraction and risk of bias assessment by two independent reviewers.
• Analysis of outcomes including Action Research Arm Test and Fugl-Meyer Assessment, examining age, dosage, trial length, session frequency, and VR content.

Main Results:

• VR therapy (VRT) significantly improved upper limb function and daily living independence compared to conventional therapy.
• Younger age, total intervention exceeding 15 hours, trial length over 4 weeks, and sessions >4/week were associated with better outcomes.
• VR content design features did not show a significant impact on functional improvements.

Conclusions:

• Higher training doses (>15 hours) over 4-6 weeks with shorter sessions (approx. 1 hour) 4+ times/week optimize VR therapy for stroke patients.
• Younger stroke survivors tend to benefit more from VR interventions.