Rehabilitation of Chronic Stroke Using Neurofeedback, Functional Electrical Stimulation and Cerebrospinal Direct...

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Biomedical Engineering

Background:

• Stroke often results in chronic motor deficits, necessitating innovative rehabilitation strategies.
• Current rehabilitation methods may not fully restore lost motor function.
• Integrating multiple advanced technologies offers potential for enhanced recovery.

Purpose of the Study:

• To evaluate a novel, multi-modal rehabilitation protocol for a chronic post-stroke patient.
• To assess the efficacy of combining cerebrospinal Direct Current Stimulation (csDCS), Brain-Computer Interface (BCI) with Motor Imagery (MI) and Neurofeedback (NFB), and Functional Electrical Stimulation (FES).
• To investigate the recovery of left hand and leg movements using an Alternating Treatment Design (ATD).

Main Methods:

• Application of a novel rehabilitation protocol including csDCS, BCI (MI/NFB), and FES with a pedal exerciser.
• Utilized an Alternating Treatment Design (ATD) for a chronic post-stroke subject.
• Assessed rehabilitation progress using standardized metrics: Fugl Meyer Assessment (FMA), Functional Independence Measure (FIM), Ashworth Scale, Muscle Strength Grading (MSG), and surface Electromyography (sEMG).

Main Results:

• Achieved a 41% gain in hand function recovery and a 5% gain in motor and cognitive/social domains.
• Demonstrated a 50% improvement in wrist extensor and finger extensor muscle strength.
• Reported a 17% gain in Maximum Voluntary Contraction (MVC) for the tibialis anterior muscle.
• Observed some EMG value worsening, potentially linked to botulinum toxin application.

Conclusions:

• The combined rehabilitation protocol shows promise in improving motor function and muscle strength in chronic post-stroke patients.
• NIBS, BCI, and FES integration represents a viable strategy for enhancing stroke rehabilitation outcomes.
• Further research with larger cohorts is warranted to validate these findings.