Parkinson's disease leads to problems walking and balancing, including freezing of gait, a feeling feet are 'glued to the floor' when attempting to start walking or turning, especially when dual-tasking. Freezing is associated with abnormal balance control, cognitive issues, and reduced connections between the frontal cortex and locomotor areas in the brainstem. New studies suggest that exercises focused on the balance and cognitive issues and ability to walk and talk may improve brain function involved in walking and freezing .
Source & Citation : Parkinson Foundation .