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

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 de...

Full description

Saved in:
Bibliographic Details
Published in:Gait & posture 2006-12, Vol.24 (4), p.502-509
Main Authors: Jasiewicz, Jan M., Allum, John H.J., Middleton, James W., Barriskill, Andrew, Condie, Peter, Purcell, Brendan, Li, Raymond Che Tin
Format: Article
Language:English
Subjects:
Acceleration
Adolescent
Adult
Aged
Child
Child, Preschool
Female
Foot contact detection
Gait - physiology
Gait analysis
Humans
Inertial sensors
Male
Middle Aged
Spinal Cord Injuries - physiopathology
Transducers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0966-6362
1879-2219
DOI:10.1016/j.gaitpost.2005.12.017