Illusion-enhanced Virtual Reality Exercise for Neck Pain: A Replicated Single Case Series

Area of Science:

• Pain management
• Virtual reality applications
• Musculoskeletal rehabilitation

Background:

• Body illusions show potential for chronic pain treatment.
• Persistent neck pain affects a significant portion of the population.
• Virtual reality (VR) offers novel therapeutic approaches for pain management.

Purpose of the Study:

• To investigate if amplified visual feedback during VR neck exercises can alleviate persistent neck pain.
• To test the hypothesis that enhanced VR rotation feedback reduces neck pain intensity and improves range of motion.

Main Methods:

• A multiple-baseline single-case series design was employed with 8 participants experiencing persistent neck pain.
• Participants underwent four phases: baseline, VR exercises, VR with amplified visual feedback, and follow-up.
• Primary outcomes included twice-daily measurements of pain-free range of motion and pain intensity.

Main Results:

• No statistically significant differences were observed in pain intensity or pain-free range of motion between VR and baseline conditions.
• The VR enhanced phase, with overstated visual feedback, showed no improvement over the standard VR phase.
• No significant differences were found between the VR enhanced phase and the follow-up phase.

Conclusions:

• The hypothesis that amplified visual feedback in VR neck exercises reduces persistent neck pain was not supported.
• Further research is needed to explore alternative VR parameters or patient populations for effective pain management.
• The study highlights the need for continued investigation into the efficacy of VR-based interventions for chronic pain conditions.