title: Preliminary investigation of test-retest reliability of a robotic assessment for Parkinson's disease.
abstract: Several systems have been proposed to objectively quantify the motor signs of Parkinson's disease. While validity has been investigated for a subset of these systems, test-retest reliability of automated assessments has been more neglected. We have created a protocol that uses a robotic system to measure force and position as the user performs tracking tasks with and without a simultaneous cognitive or motor task. We present preliminary results for test-retest reliability with eight individuals with early to moderate PD. Based on this data, we identified variables with large, significant correlations between the test and retest data. A total of 21 reliable variables were identified with all portions of the assessment protocol producing reliable variables.
authors.affiliation: Department of Rehabilitation Science and Technology, University of Pittsburgh, PA 15260, USA. bbrewer@pitt.edu
authors.forename: B R
authors.initials: BR
authors.lastname: Brewer
authors.forename: S
authors.initials: S
authors.lastname: Pradhan
mesh_terms: D001696:Biomechanical Phenomena; D056228:Feedback, Sensory; D006801:Humans; D010300:Parkinson Disease / Q000175:diagnosis* / Q000503:physiopathology; D015203:Reproducibility of Results; D012371:Robotics / Q000379:methods*