Wearable systems in movement disorders

Wearable systems are research-grade or commercial electronic instruments designed to be worn by the user and to serve a variety of purposes. These devices can detect and collect various health-related parameters, such as movement, heart rate, temperature, etc. In addition, wearable devices enable long-term monitoring in an everyday environment. Movement disorders were one of the first and most explored areas of neurology through wearables. These have been used to assess symptoms, aid in diagnosis, monitor disease progression, help administer treatment, and evaluate response in various conditions, particularly in Parkinson's disease. Recently, the implementation of wearable devices in closed-loop systems and the development of electrochemical sensors to record biochemical data have opened new avenues for the use of these instruments. In this chapter, we provide an overview of the application of wearable systems in movement disorders and summarize the most recent advances in this field.