Abstract Details

Title Fusing the Virtual and Physical Worlds to Identify Declines in Instrumental Activities of Daily Living Associated with Parkinson's Disease

Topic Movement Disorders

Presentation(s) S37 - Movement Disorders: Phenotyping and Biomarkers (2:24 PM-2:36 PM)

Poster/Presentation
Number 008

Objective The objective of this study was to utilize a novel virtual reality paradigm, Cleveland Clinic Virtual Reality Shopping (CC-VRS), to identify changes in instrumental activities of daily living (IADL) associated with Parkinson’s disease (PD).

Background Understanding the effects of medication or surgical interventions on PD IADL performance is necessary to ensure optimized function and maximize independence. The CC-VRS combines virtual reality content with an omnidirectional treadmill to create an immersive full-scale grocery shopping environment that presents cognitive and physical challenges, objectively and quantitatively evaluating cognitive and motor function.

Design/Methods Fourteen individuals with PD (UPDRS-III 25.9 ± 13.9, ON antiparkinsonian medication), and 14 age- and gender-matched healthy adults completed Basic and Complex shopping scenarios; the latter includes additional cognitive and physical demands while shopping. During the scenario, participants physically navigated through the virtual grocery store on the omnidirectional treadmill that allowed them to walk in a straight line and perform 90° and 180° turns. The store route, shopping items, and distractors were standardized across participants.

Results Motor and cognitive performance differed across PD and control groups. From a motor perspective, PD patients exhibited significantly shorter step length (p<0.05) and experienced multiple freezing episodes while turning. Cognitive function was evaluated through list observation behaviors; PD patients spent significantly more time looking at their virtual shopping list (p<0.01) and time for each list activation was nearly twice that of controls (p<0.01). Both groups tolerated the virtual environment well, as Simulator Sickness Questionnaire scores for both groups were minimal following completion of CC-VRS.

Conclusions The CC-VRS platform successfully quantifies PD motor symptoms and subtle cognitive declines in mild PD versus healthy controls. The CC-VRS platform was well-tolerated across groups and offers an innovative approach to objectively quantifying IADL performance, with potential for use in titrating medication and tuning deep brain stimulation parameters.

Authors/Disclosures
Morgan McGrath (Case Western Reserve University) PRESENTER	Mrs. McGrath has received research support from NIH. Mrs. McGrath has received intellectual property interests from a discovery or technology relating to health care.
	No disclosure on file
	No disclosure on file
Mandy Koop	No disclosure on file
Hubert H. Fernandez, MD, FAAN (Center for Neurological Restoration, Cleveland Clinic)	Dr. Fernandez has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Abbvie. Dr. Fernandez has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Amneal. Dr. Fernandez has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Intrance. Dr. Fernandez has received personal compensation in the range of $500-$4,999 for serving as a Consultant for Novartis. Dr. Fernandez has received personal compensation in the range of $500-$4,999 for serving on a Scientific Advisory or Data Safety Monitoring board for Abbvie. Dr. Fernandez has received personal compensation in the range of $10,000-$49,999 for serving as an Editor, Associate Editor, or Editorial Advisory Board Member for Elsevier. Dr. Fernandez has received publishing royalties from a publication relating to health care. Dr. Fernandez has received personal compensation in the range of $10,000-$49,999 for serving as a Steering Committee/Advisory Committee Member with Parkinson Study Group.
Jay L. Alberts, PhD (Cleveland Clinic)	The institution of Dr. Alberts has received research support from NIH. Dr. Alberts has received intellectual property interests from a discovery or technology relating to health care. Dr. Alberts has received personal compensation in the range of $500-$4,999 for serving as a Member, Health and Wellness Council with Peloton Interactive.

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