Validation of a Lower Back "Wearable"-Based Sit-to-Stand and Stand-to-Sit Algorithm for Patients With Parkinson's Disease and Older Adults in a Home-Like Environment

Frontiers in Neurology
Minh H PhamWalter Maetzler

Abstract

Introduction: Impaired sit-to-stand and stand-to-sit movements (postural transitions, PTs) in patients with Parkinson's disease (PD) and older adults (OA) are associated with risk of falling and reduced quality of life. Inertial measurement units (IMUs, also called "wearables") are powerful tools to monitor PT kinematics. The purpose of this study was to develop and validate an algorithm, based on a single IMU positioned at the lower back, for PT detection and description in the above-mentioned groups in a home-like environment. Methods: Four PD patients (two with dyskinesia) and one OA served as algorithm training group, and 21 PD patients (16 without and 5 with dyskinesia) and 11 OA served as test group. All wore an IMU on the lower back and were videotaped while performing everyday activities for 90-180 min in a non-standardized home-like environment. Accelerometer and gyroscope signals were analyzed using discrete wavelet transformation (DWT), a six degrees-of-freedom (DOF) fusion algorithm and vertical displacement estimation. Results: From the test group, 1,001 PTs, defined by video reference, were analyzed. The accuracy of the algorithm for the detection of PTs against video observation was 82% for PD patients without dy...Continue Reading

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Citations

Jun 13, 2020·International Journal of Environmental Research and Public Health·Pilar Serra-AñóJuan López-Pascual
Aug 1, 2020·Neurotherapeutics : the Journal of the American Society for Experimental NeuroTherapeutics·Carlo Alberto ArtusiAlberto J Espay
Jun 5, 2020·Journal of Neuroengineering and Rehabilitation·Arash AtrsaeiKamiar Aminian
Nov 17, 2020·Movement Disorders : Official Journal of the Movement Disorder Society·Walter MaetzlerJanet M T van Uem
Nov 6, 2020·Journal of Neuroengineering and Rehabilitation·Fabian Marcel Rast, Rob Labruyère
Apr 4, 2021·International Journal of Environmental Research and Public Health·Clint HansenWalter Maetzler

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