INTRODUCTION: Upper limb (UL) impairment is common in people with multiple sclerosis (pwMS), and functional recovery of the UL is a key rehabilitation goal. Technology-based approaches, like virtual reality (VR), are increasingly promising. While most VR environments are task-oriented, our clinical approach integrates neuroproprioceptive 'facilitation and inhibition' (NFI) principles. To advance this, we developed immersive VR software based on NFI principles targeting UL function and sit-to-stand ability. This study aims to evaluate the effectiveness of this VR therapy compared with conventional NFI-based physical therapy in pwMS. Our study uniquely applies advanced imaging techniques, along with biological molecular assessments, to explore adaptive processes induced by VR rehabilitation. METHODS AND ANALYSIS: This double-arm, randomised, assessor-blinded, controlled trial runs over 2 months (1 hour, 2 times per week). PwMS with mild to severe disability will receive either VR therapy or real-world physical therapy. Primary outcomes include the nine-hole peg test, box and block test, handgrip strength, tremor and five times sit-to-stand test. Secondary measures include the Multiple Sclerosis Impact Scale, the 5-level EQ-5D questionnaire and kinematic analysis. Adaptive processes will be monitored using imaging techniques (functional MRI and tractography), molecular genetic methods (long non-coding RNAs) and immune system markers (leukocytes, dendritic cells). The International Classification of Functioning, Disability and Health brief set for MS will map the bio-psycho-social context of participants. ETHICS AND DISSEMINATION: This project and its amendments were approved by the Ethics Committee of the Institute for Clinical and Experimental Medicine and Thomayer Hospital (1983/21+4772/21 (G-21-02) and the Ethics Committee of Kralovske Vinohrady University Hospital (EK-VP/38/0/2021) in Prague, Czechia (with single enrolment). The findings of this project will be disseminated through scientific publications, conferences, professional networks, public engagement, educational materials and stakeholder briefings to ensure a broad impact across clinical, academic and public domains. TRIAL REGISTRATION NUMBER: clinicaltrials.gov (NCT04807738).

Department of Computer Science and Engineering Faculty of Applied Sciences University of West Bohemia Plzen Czech Republic

Department of Medical Genetics 3rd Faculty of Medicine Charles University Prague Czech Republic

Department of Neurology 3rd Faculty of Medicine Charles University and University Hospital Královské Vinohrady Prague Czech Republic

Department of Rehabilitation and Sports Medicine 2nd Medical Faculty Charles University and University Hospital Motol Prague Czech Republic

Department of Rehabilitation Medicine 3rd Faculty of Medicine Charles University and University Hospital Královské Vinohrady Prague Czech Republic

Department of Rheumatology and Physiotherapy 3rd Faculty of Medicine Charles University and Thomayer University Hospital Prague Czech Republic

Faculty of Electrical Engineering Czech Technical University Prague Prague Czech Republic

Faculty of Physical Education and Sport Charles University Prague Czech Republic

Institute of Clinical and Experimental Medicine Prague Czech Republic

Institute of Computer Science Czech Academy of Sciences Prague Czech Republic

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ClinicalTrials.gov
NCT04807738