Deakin University
Browse
pathirana-measurementof-2018.pdf (2.92 MB)

Measurement of axial rigidity and postural instability using wearable sensors

Download (2.92 MB)
journal contribution
posted on 2018-02-07, 00:00 authored by Dung Phan, Malcolm Horne, Pubudu PathiranaPubudu Pathirana, Parisa Farzanehfar
Axial Bradykinesia is an important feature of advanced Parkinson's disease (PD). The purpose of this study is to quantify axial bradykinesia using wearable sensors with the long-term aim of quantifying these movements, while the subject performs routine domestic activities. We measured back movements during common daily activities such as pouring, pointing, walking straight and walking around a chair with a test system engaging a minimal number of Inertial Measurement (IM) based wearable sensors. Participants included controls and PD patients whose rotation and flexion of the back was captured by the time delay between motion signals from sensors attached to the upper and lower back. PD subjects could be distinguished from controls using only two sensors. These findings suggest that a small number of sensors and similar analyses could distinguish between variations in bradykinesia in subjects with measurements performed outside of the laboratory. The subjects could engage in routine activities leading to progressive assessments of therapeutic outcomes.

History

Journal

Sensors

Volume

18

Issue

2

Article number

495

Pagination

1 - 14

Publisher

MDPI

Location

Basel, Switzerland

eISSN

1424-8220

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2018, The Author