Contactless Gait Assessment in Home-like Environments

Botros, Angela; Gyger, Nathan; Schütz, Narayan; Single, Michael; Nef, Tobias; Gerber, Stephan M. (2021). Contactless Gait Assessment in Home-like Environments. Sensors, 21(18) Molecular Diversity Preservation International MDPI 10.3390/s21186205

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Gait analysis is an important part of assessments for a variety of health conditions, specifically neurodegenerative diseases. Currently, most methods for gait assessment are based on manual scoring of certain tasks or restrictive technologies. We present an unobtrusive sensor system based on light detection and ranging sensor technology for use in home-like environments. In our evaluation, we compared six different gait parameters, based on recordings from 25 different people performing eight different walks each, resulting in 200 unique measurements. We compared the proposed sensor system against two state-of-the art technologies, a pressure mat and a set of inertial measurement unit sensors. In addition to test usability and long-term measurement, multi-hour recordings were conducted. Our evaluation showed very high correlation (r>0.95) with the gold standards across all assessed gait parameters except for cycle time (r=0.91). Similarly, the coefficient of determination was high (R2>0.9) for all gait parameters except cycle time. The highest correlation was achieved for stride length and velocity (r≥0.98,R2≥0.95). Furthermore, the multi-hour recordings did not show the systematic drift of measurements over time. Overall, the unobtrusive gait measurement system allows for contactless, highly accurate long- and short-term assessments of gait in home-like environments.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research
10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Gerontechnology and Rehabilitation

Graduate School:

Graduate School for Cellular and Biomedical Sciences (GCB)

UniBE Contributor:

Botros, Angela Amira; Gyger, Nathan Thibault; Schütz, Narayan; Single, Michael Andreas; Nef, Tobias and Gerber, Stephan Moreno

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health
600 Technology > 620 Engineering

ISSN:

1424-8220

Publisher:

Molecular Diversity Preservation International MDPI

Language:

English

Submitter:

Aileen Näf

Date Deposited:

15 Oct 2021 10:45

Last Modified:

15 Oct 2021 10:45

Publisher DOI:

10.3390/s21186205

PubMed ID:

34577412

BORIS DOI:

10.48350/159764

URI:

https://boris.unibe.ch/id/eprint/159764

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