Short intervals of inertial measurement unit data collected during activities of daily living can provide a quantitative method to assess disease severity and functional ability in Parkinson's disease

Parkinson's disease (PD) is a progressive neurodegenerative disorder affecting roughly one million people in the U.S. People with PD (PwPD) exhibit classic motor symptoms that limit performance on functional tasks and reduce quality of life (QOL). Despite functional ability (FA) being a critical indicator of patient well-being, objective and quantitative measurement of FA during activities of daily living (ADLs) is not a part of standard clinical assessments. To address this gap, we conducted a pilot study of PwPD (n = 39) and healthy controls (n = 7) performing ADLs. We attached nine-axis ine

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