Article
作者: Becker, Clemens ; Ginis, Pieter ; Neatrour, Isabel ; Rochester, Lynn ; Hansen, Clint ; Sutcliffe, Lou ; Yarnall, Alison J ; Nieuwboer, Alice ; Gassner, Heiko ; Hausdorff, Jeffrey M ; Sharrack, Basil ; Maetzler, Walter ; Cordova-Rivera, Laura ; Cereatti, Andrea ; Koch, Sarah ; Alcock, Lisa ; Kudelka, Jennifer ; Hiden, Hugo ; Del Din, Silvia ; Hildesheim, Hanna ; Delgado-Ortiz, Laura ; Forrest-Gordon, Mark ; Buekers, Joren ; Garcia-Aymeriche, Judith ; Caulfield, Brian ; Goerrissen, Pia ; Schlenstedt, Christian ; Winkler, Juergen ; Armengol, Claudia ; Jansen, Carl-Philipp ; Mirelman, Anat ; Long, Michael ; Brown, Philip ; Singleton, David ; Hunter, Heather ; Troosters, Thierry
Background:A key challenge in trials targeting disease modification in Parkinson's disease (PD) is the lack of sensitive, precise, and patient-relevant outcome measures. Digital mobility outcomes (DMOs), captured using body-worn devices, offer a novel, objective means to assess real-world gait and mobility—domains often impaired early in PD. The Mobilise-D consortium was established to develop and validate DMOs in PD and other conditions.
Objective:To describe DMOs in a large, representative international cohort of individuals with PD and compare to controls and across disease stage; and to determine compliance and feasibility.
Methods:As part of the Mobilise-D Clinical Validation and Extension Studies, real-world mobility of individuals with PD (n = 601) and matched controls (n = 232) was assessed using a single wearable device for seven days. Data were processed to yield 24 technically validated DMOs, representing different domains of real-world walking and mobility performance.
Results:
DMO data were available for 531 PD and 221 controls. Significant differences between the groups were observed in 20 of 24 DMOs. Compared to controls, PD participants exhibited shorter daily walking duration and lower step counts, walking at a higher cadence and in fewer walking bouts per day. Findings also varied by disease severity, with differences observed particularly between controls
vs.
mild (Hoehn and Yahr stage I-II) and mild
vs.
moderate (Hoehn and Yahr stage III) disease. Compliance rates were high.
Conclusions:Distinct DMO patterns across PD severity and between PD and controls support their utility as sensitive, scalable outcome measures for future clinical trials and therapeutic development.