Investigating the Increased Risk of Falls in Individuals With Parkinson's Disease Treated With Deep Brain Stimulation

Inclusion Criteria: * Age between 30-80, patient has elected to undergo DBS surgery as part of routine care, cleared for deep brain stimulation surgery as part of routine care by the movement disorders committee. Refractory motor symptoms such as dyskinesias, wearing off, and/or motor fluctuations, causing significant disability, despite reasonable attempts at medical management, as determined by the consensus DBS committee, able to walk, Patient is available for follow-up over the length of the study Exclusion Criteria: Patient's insurance will not cover the costs of surgery with investigational devices, Medical contraindications such as current uncontrolled hypertension, heart disease, coagulopathy, or other conditions contraindicating DBS surgery or stimulation, self-report of lack of clear levodopa response, requires a walker or wheelchair for mobility \-