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Gait event detection using linear accelerometers or angular velocity transducers in able-bodied and spinal-cord injured individuals

Jasiewicz, Jan M., Allum, John H., Middleton, James W., Barriskill, Andrew, Condie, Peter, Purcell, Brendan, & Li, Raymond C.T. (2006) Gait event detection using linear accelerometers or angular velocity transducers in able-bodied and spinal-cord injured individuals. Gait & Posture, 24(4), pp. 502-509.

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Abstract

We report on three different methods of gait event detection (toe-off and heel strike) using miniature linear accelerometers and angular velocity transducers in comparison to using standard pressure-sensitive foot switches. Detection was performed with normal and spinal-cord injured subjects. The detection of end contact (EC), normally toe-off, and initial contact (IC) normally, heel strike was based on either foot linear accelerations or foot sagittal angular velocity or shank sagittal angular velocity. The results showed that all three methods were as accurate as foot switches in estimating times of IC and EC for normal gait patterns. In spinal-cord injured subjects, shank angular velocity was significantly less accurate (p < 0.02). We conclude that detection based on foot linear accelerations or foot angular velocity can correctly identify the timing of IC and EC events in both normal and spinal-cord injured subjects.

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63 citations in Web of Science®

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ID Code: 8679
Item Type: Journal Article
Additional Information: For more information, please refer to the journal’s website (see hypertext link) or contact the author. Author contact details: j.jasiewicz@qut.edu.au
Keywords: Gait analysis, Inertial sensors, Foot contact detection
DOI: 10.1016/j.gaitpost.2005.12.017
ISSN: 0966-6362
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > HUMAN MOVEMENT AND SPORTS SCIENCE (110600) > Biomechanics (110601)
Divisions: Current > Research Centres > Centre for Health Research
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2006 Elsevier
Deposited On: 18 Jul 2007
Last Modified: 11 Aug 2011 01:35

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