https://www.sciencedaily.com/releases/2019/04/190409162815.htm

For many people with Parkinson's disease, the simple act of walking through the house or neighborhood can be a treacherous undertaking. The muscle and movement problems caused by the disease decrease a person's range of motion and impair balance, often leading to falls and injuries.

To help patients manage these challenges, researchers created a virtual reality training system that gives patients a safe space to hone their muscle control and balance. Patients walk on a treadmill while stepping over virtual objects that appear before them. If they are successful in one round, the objects become larger in the next round.