3D gait assessment in young and elderly subjects using foot-worn inertial sensors

Journal of Biomechanics
Benoit MarianiKamiar Aminian

Abstract

This study describes the validation of a new wearable system for assessment of 3D spatial parameters of gait. The new method is based on the detection of temporal parameters, coupled to optimized fusion and de-drifted integration of inertial signals. Composed of two wirelesses inertial modules attached on feet, the system provides stride length, stride velocity, foot clearance, and turning angle parameters at each gait cycle, based on the computation of 3D foot kinematics. Accuracy and precision of the proposed system were compared to an optical motion capture system as reference. Its repeatability across measurements (test-retest reliability) was also evaluated. Measurements were performed in 10 young (mean age 26.1±2.8 years) and 10 elderly volunteers (mean age 71.6±4.6 years) who were asked to perform U-shaped and 8-shaped walking trials, and then a 6-min walking test (6MWT). A total of 974 gait cycles were used to compare gait parameters with the reference system. Mean accuracy±precision was 1.5±6.8cm for stride length, 1.4±5.6cm/s for stride velocity, 1.9±2.0cm for foot clearance, and 1.6±6.1° for turning angle. Difference in gait performance was observed between young and elderly volunteers during the 6MWT particularly in...Continue Reading

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Citations

Sep 2, 2011·Journal of the Royal Society, Interface·D HamacherW R Taylor
Jul 5, 2012·Journal of Biomechanical Engineering·Hossein RouhaniKamiar Aminian
Sep 10, 2014·Medical Engineering & Physics·Andrea Mannini, Angelo Maria Sabatini
Mar 24, 2016·Gait & Posture·Christopher Moufawad el AchkarKamiar Aminian
Nov 25, 2014·Research in Gerontological Nursing·Blaine Reeder, Kamin Whitehouse
Nov 18, 2015·Journal of Biomechanics·Braveena K SanthiranayagamRezaul K Begg
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Mar 27, 2013·IEEE Transactions on Bio-medical Engineering·Jwu-Sheng HuChi-Yuan Cheng
Oct 17, 2012·IEEE Transactions on Bio-medical Engineering·Arash SalarianKamiar Aminian
Dec 27, 2012·IEEE Transactions on Bio-medical Engineering·Benoit MarianiKamiar Aminian
Sep 8, 2012·IEEE Transactions on Bio-medical Engineering·Benoit MarianiKamiar Aminian
Apr 25, 2015·Journal of Biomechanics·Koichi Sagawa, Kensuke Ohkubo
Jul 3, 2013·Gait & Posture·John R RebulaArthur D Kuo
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Sep 28, 2017·Computer Methods in Biomechanics and Biomedical Engineering·Christian MitschkeThomas L Milani
May 17, 2018·Journal of Neuroengineering and Rehabilitation·Myeounggon LeeHwayoung Park

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