Interactive virtual feedback improves gait motor imagery after spinal cord injury: An exploratory study

Area of Science:

• Neuroscience
• Rehabilitation Medicine
• Virtual Reality

Background:

• Motor imagery is a cognitive process with therapeutic potential for improving motor function and reducing pain.
• Spinal cord injury (SCI) is frequently associated with motor dysfunction and neuropathic pain, highlighting the need for effective interventions.
• The efficacy of motor imagery interventions may depend on an individual's ability, and methods to facilitate this ability are needed.

Purpose of the Study:

• To assess the immediate effects of interactive virtual feedback on motor imagery performance in individuals with SCI.
• To explore the feasibility and potential benefits of using interactive virtual environments to enhance motor imagery.

Main Methods:

• Nine individuals with traumatic SCI performed motor imagery tasks (forward and backward walking) under interactive versus static virtual feedback conditions.
• Motor imagery performance was evaluated based on vividness, effort, and speed.
• Neuropathic pain intensity and feasibility (immersion, distraction, side-effects) were also assessed.

Main Results:

• Interactive virtual feedback significantly increased motor imagery vividness and speed compared to static feedback.
• Effort required for motor imagery tasks was significantly lower with interactive feedback.
• No significant changes in neuropathic pain were observed; however, immersion was reported as good with minor adverse effects.

Conclusions:

• Interactive virtual walking is a feasible method for facilitating motor imagery performance in individuals with SCI.
• The findings suggest that incorporating interactive virtual feedback could enhance the effectiveness of motor imagery-based interventions for SCI rehabilitation.