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  4. Wearable barometric pressure sensor to improve postural transition recognition of mobility-impaired stroke patients
 
research article

Wearable barometric pressure sensor to improve postural transition recognition of mobility-impaired stroke patients

Massé, F
•
Gonzenbach, R
•
Paraschiv-Ionescu, A  
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2016
IEEE Transactions on Neural Systems and Rehabilitation Engineering

Sit-to-stand and Stand-to-sit transfers (STS) provide relevant information regarding the functional limitation of mobility- impaired patients. The characterization of STS pattern using a single trunk fixed inertial sensor has been proposed as an objective tool to assess changes in functional ability and balance due to disease. Despite significant research efforts, STS quantification remains challenging due to the high inter-and between-subject variability of this motion pattern. The present study aims to improve the performance of STS detection and classification by fusing the information from barometric pressure (BP) and inertial sensors while keeping a single sensor located at the trunk. A total number of 345 STSs were recorded from 12 post-stroke patients monitored in a semi-structured conditioned protocol. Model-based features of BP signal were combined with kinematic parameters from accelerometer and/or gyroscope and used in a logistic regression-based classifier to detect STS and then identify their types. The correct classification rate was 90.6% with full sensor (BP and inertial) configuration and 75.4% with single inertial sensor. Receiver-Operating-Characteristics analysis was carried out to characterize the robustness of the models. The results demonstrate the potential of BP sensor to improve the detection and classification of STSs when monitoring is performed unobtrusively in every-day life.

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Type
research article
DOI
10.1109/Tnsre.2016.2532844
Web of Science ID

WOS:000389345500009

Author(s)
Massé, F
Gonzenbach, R
Paraschiv-Ionescu, A  
Luft, A
Aminian, Kamiar  
Date Issued

2016

Publisher

Institute of Electrical and Electronics Engineers

Published in
IEEE Transactions on Neural Systems and Rehabilitation Engineering
Volume

24

Issue

11

Start page

1210

End page

1217

Subjects

Activity monitoring

•

barometric pressure

•

inertial sensors

•

mobility impairments

•

postural transitions

•

stroke

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LMAM  
Available on Infoscience
March 13, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/124867
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