How virtual reality (VR) therapy can benefit patients with Parkinson’s

소개

Consider “Sam,” a 70-year-old living with Parkinson's disease for three years. Medication keeps things under control most days, but one morning as Sam is walking through the kitchen, their feet just stop. Their body won't move. They’re frozen in the doorway with a pot of boiling water in hand, and luckily, they don’t fall. Most people with Parkinson’s are not so lucky, as over 60% of people fall at least once a year. These falls are the leading cause of hospitalization and loss of independence in this population. It's not just the diagnosis, but the fear of falling while doing everyday activities that robs these seniors of their independence.

Current treatment options help manage symptoms; physical therapy builds strength and basic movement. However, no medication teaches the body how to walk along a crowded sidewalk while carrying groceries, and no clinic prepares someone for a narrow hallway or uneven pavement. The chaotic, unpredictable situations where Parkinson's patients actually fall are exactly the situations that current treatment never lets them practice safely. That gap is where virtual reality (VR) comes in, and the evidence behind it is stronger than most people realize.

Background

VR first emerged as a tool for therapy in the 1990s as a psychological treatment. Early on, VR focused on exposure therapy and anxiety; however, it was recognized for its potential in many other areas of medical therapy. VR can create safe and immersive environments with little to no limitations, allowing for the applications of new kinds of cognitive and neurological therapies. For instance, one of the first alternate applications of VR therapy was for stroke rehabilitation, assisting patients who had strokes with recovery from their resulting brain trauma. VR therapy allows participants to practice basic motions like balancing, reaching, and grasping without the risk of falls and injury. Later on, VR was also applied to patients with traumatic brain injury, cerebral palsy, and other conditions affecting motor skills. Through repeated practice, VR helped these patients relearn motor patterns needed for everyday life.

This success sparked conversations about the use of VR in movement disorder treatment. Movement disorders present a challenge distinct from injuries, as molecular neurotransmitter systems are affected, not large motor pathways. For Parkinson's, a neurodegenerative condition, the principal cause of motor skill degradation is caused by dopamine deficiencies. Although VR started as a treatment for trauma injuries, it is helpful in training compensatory strategies and improving perception for patients with Parkinson's. VR supports safer and more controlled movement through realistic simulation for these patients, allowing them to fall safely and practice without fear. This practice allows people with Parkinson’s to conquer challenging movements through hundreds of repetitions, so that they can perform them in the real world.

Evidence

In the past decade, research has shown how and why VR is effective for Parkinson’s at the neurological level, including studies with magnetic reasonance imaging (MRI). Brain activation in Parkinson’s patients doing VR therapy has been studied using functional MRI. While performing virtual walking exercises, researchers discovered that patients engaged compensatory neural pathways, such as in the prefrontal cortex and the cerebellum, where movement was being coordinated without the need of dopamine-reliant circuits. The ability for VR to engage non-dopamine pathways in Parkinson’s, a disorder of dopamine circuits, is game-changing. VR is not only useful in allowing users to repeat tasks, but also in building new neurological bridges that allow Parkinson’s patients to accomplish certain movements again. This type of neuroplasticity is difficult to achieve through medication, but VR allows the space and the environment for it to happen over time.

By simulating real-world movement in a safe environment, VR has consistently proven effective in ameliorating dynamic mobility in Parkinson’s patients. A study led by Dr. Jeffrey M. Hausdorff demonstrated the positive effects of VR in occupational tasks. After 6 weeks of training, Parkinson’s patients using VR therapy combined with treadmill therapy demonstrated increased walking speed, endurance, and navigation. Participants also reported improved quality of life as patients using VR fell less. The study showed more favorable outcomes for patients who used VR and treadmill therapy compared with those who used a treadmill only. Similarly, another study showed that combined VR and treadmill treatment was more effective in improving gait function and stepping accuracy compared to treadmill-only training.

A meta-analysis conducted at the Federal University of Paraìba in Brazil reviewed the efficacy of different VR therapies aimed at treating Parkinson’s. Researchers analyzed randomized trials that compared VR with other Parkinson’s interventions and found that VR improved balance and overall mobility when walking. Many separate studies support the use of VR as a complementary therapy. VR treatment can enhance Parkinson’s patients' movement and, consequently, their independence. Ideally, these therapies will be developed and implemented by healthcare providers, offering an accessible new solution to the symptoms of Parkinson's in conjunction with existing treatments.

Beyond the clinic:

Many of these therapies are also accessible at home for Parkinson's patients. A study in Italy delivered VR cognitive training sessions remotely, focusing on attention and reflexes. The findings suggested that cognitive online therapy combined with VR enhanced cognitive function and quality of life. A separate study presented at a conference in Japan developed VR-based fitness games designed to prevent muscle weakness in Parkinson's patients. These games should be investigated in the future to determine their effectiveness in Parkinson's rehabilitation. Both studies offer Parkinson's patients a convenient option, eliminating the need to travel to a speciality clinic for important care. These applications of VR will hopefully allow for the widespread implementation of a therapy that has been shown to manage Parkinson's symptoms. It is important to note that at-home VR treatment is not realistic for all. While convenient, VR therapy is often not considered by providers and can be expensive to administer in individual residences.

결론

While VR therapy programs and products are lucrative for researchers, patients, and the engineers behind them, there are drawbacks. Studies on VR are conducted in lab conditions under clinical supervision, which are not representative of real life. These same studies have only shown success in small cohorts; it is unclear if VR can benefit other populations. The study by Hausdorff, for example, included only 25 patients, and those patients all had mild or moderate Parkinson's. The success of this VR therapy cannot necessarily be applied to individuals who may have severe Parkinson’s disease, amongst other logistical limitations. VR has not yet been developed into accessible FDA-cleared products for Parkinson’s patients who are not in research studies. Even if a product becomes available on the market, it may be hard or even impossible to afford.

Despite these limitations and research concerns, VR therapy has the potential to help Parkinson’s patients. Current studies and evidence suggest that VR has successfully engaged and assisted patients with Parkinson’s, and it is only a matter of time until products or programs that focus on VR therapy become more widespread.

참조

• Hausdorff, Jeffrey M. “Virtual Reality to Reduce Fall Risk in Patients with Parkinson’s Disease.” The Michael J. Fox Foundation for Parkinson’s Research | Parkinson’s Disease, 2007, www.michaeljfox.org/grant/virtual-reality-reduce-fall-risk-patients-parkinsons-disease. Accessed 20 May 2026.

• Lombardi, Gemma, et al. “Comparing the Effects of Augmented Virtual Reality Treadmill Training versus Conventional Treadmill Training in Patients with Stage II-III Parkinson’s Disease: The Virtread-PD Randomized Controlled Trial Protocol.” Frontiers in Neurology, vol. 15, 24 Jan. 2024, doi:10.3389/fneur.2024.1338609.

• Maggio, Maria Grazia, et al. “Efficacy and Feasibility of Virtual Reality-Based Cognitive Tele-Rehabilitation in Parkinson’s Disease: A Pilot Randomized Controlled Trial on Patients and Caregivers.” DIGITAL HEALTH, vol. 11, May 2025, doi:10.1177/20552076251376534.

• Y. Nitta, T. Sawada and R. Suzuki, "Development of a VR-based fitness game designed for individuals living with Parkinson's disease," 2025 IEEE 14th Global Conference on Consumer Electronics (GCCE), Osaka, Japan, 2025, pp. 605-606, doi: 10.1109/GCCE65946.2025.11274752.

• Fernandes, João Vitor, et al. “Virtual Reality in Parkinson’s Disease: A Systematic Review and Meta-Analysis.” Dementia & Neuropsychologia, vol. 19, 19 Sept. 2025, doi:10.1590/1980-5764-dn-2024-0257.

• Mirelman, Anat et al. “Virtual reality for gait training: can it induce motor learning to enhance complex walking and reduce fall risk in patients with Parkinson's disease?.” The journals of gerontology. Series A, Biological sciences and medical sciences vol. 66,2 (2011): 234-40. doi:10.1093/gerona/glq201

• Maidan, Inbal et al. “Disparate effects of training on brain activation in Parkinson disease.” Neurology vol. 89,17 (2017): 1804-1810. doi:10.1212/WNL.0000000000004576

• Gilat, Moran, et al. "Variability of Stepping during a Virtual Reality Paradigm in Parkinson's Disease Patients with and without Freezing of Gait." PLoS ONE, vol. 8, no. 6, 21 June 2013, e66718. doi:10.1371/journal.pone.0066718