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Study: VR Mirroring Can Improve Range of Motion in Chronic Pain Patients

by Fred Pennic 10/18/2019 Leave a Comment

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VR for Chronic Pain Startup Karuna Labs Raises $3M to Retrain The Brain

– Mirroring techniques in virtual reality have the potential to improve range of motion in chronic pain patients, a new Karuna Labs study finds. 

– The study provides evidence that MVF, originally developed to help with neuropathic pain, in VR can influence the perception of pain in the affected limb.

– These results may lead to greater knowledge of the mechanisms by which MVF can relieve chronic pain in additional areas. 

Karuna Labs, the creator of chronic pain management programs using virtual reality (VR) tech, has announced study results showing Mirror Visual Feedback (MVF) in VR can influence and improve the function of limbs affected by chronic pain. The study supports evidence that MVF, originally developed to help with neuropathic pain, in VR can influence the perception of pain in the affected limb. This form of therapy has many advantages including an alternative to surgery and opioids. 

Study Protocols

The study evaluated 15 patients with chronic shoulder pain and measured range of motion on three planes for each arm: shoulder flexion (arms straight above the head), shoulder scaption (arms out to the sides), and shoulder abduction (arms straight out and away from the body).

Karuna Labs performed the study to measure the effects on patients using its Virtual Embodiment TherapyTM technology, which applies the following:

– Graded Motor Imagery

– Corrective exercises from physical therapy which focus on performing activities of daily living

– Real-time position tracking

Study Results

A paired T-test revealed a significant decrease in range of motion when the non-affected arm was mirrored onto the painful arm (moving the non-affected arm but seeing painful side move) for shoulder flexion (t = 2.761, P = 0.019) and for shoulder scaption (t = 3.182, P = 0.009). No significant effect was observed for shoulder abduction when the non-affected arm was mirrored onto painful arm (t = −0.04, P = 0.96). These results indicate that range of motion for flexion and scaption is reduced in a non-affected limb when patients perceive the movement as occurring in their painful limb.

Future Implications for Mirror Visual Feedback

“These study results using our proprietary VR technology have immense implications for rehabilitation in patients suffering from chronic pain,” said Lincoln Nguyen, CEO of Karuna Labs. “Not only does our virtual embodiment training provide measurable improvements in range of motion for patients with chronic pain, but it also is a safer and more effective alternative to surgery, opioids, and traditional physical therapy upon further study.”

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Tagged With: Pain Management, physical therapy, Virtual Reality

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