Assessment of Foot Trajectory for Human Gait Phase Detection Using Wireless Ultrasonic Sensor Network

IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
Yongbin QiRijil Thomas

Abstract

This paper presents a new highly accurate gait phase detection system using wearable wireless ultrasonic sensors, which can be used in gait analysis or rehabilitation applications. The gait phase detection system uses the foot displacement information during walking to extract the following gait phases: heel-strike, heel-off, toe-off, and mid-swing. The displacement of foot-mounted ultrasonic sensor is obtained from several passive anchors placed at known locations by employing local spherical positioning technique, which is further enhanced by the combination of recursive Newton-Gauss method and Kalman Filter. The algorithm performance is examined by comparing with a commercial optical motion tracking system with ten healthy subjects and two foot injured subjects. Accurate estimates of gait cycle (with an error of -0.02 ±0.01 s), stance phase(with an error of 0.04±0.03 s), and swing phase (with an error of -0.05±0.03 s) compared to the reference system are obtained. We have also investigated the influence of walking velocities on the performance of the proposed gait phase detection algorithm. Statistical analysis shows that there is no significant difference between both systems during different walking speeds. Moreover, we ha...Continue Reading

References

Aug 18, 2004·IEEE Transactions on Bio-medical Engineering·Arash SalarianKamiar Aminian
Mar 12, 2005·IEEE Transactions on Bio-medical Engineering·Angelo M SabatiniFilippo Cavallo
Aug 21, 2010·Journal of Biomechanics·H Martin SchepersPeter H Veltink
Feb 10, 2012·Journal of Neuroengineering and Rehabilitation·Alper KöseUgo Della Croce
Mar 23, 2012·Sensors·Weijun TaoHutian Feng
Sep 8, 2012·IEEE Transactions on Bio-medical Engineering·Benoit MarianiKamiar Aminian
Jan 10, 2014·IEEE Journal of Biomedical and Health Informatics·Yongbin QiArash Maskooki
Feb 22, 2014·IEEE Transactions on Bio-medical Engineering·Xiaoli MengHaoyong Yu

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Citations

Jan 12, 2016·Sensors·Juri TaborriPaolo Cappa
Aug 10, 2019·Frontiers in Neurorobotics·Martin GrimmerRobert Riener
Dec 17, 2020·Sensors·Binbin Su, Elena M Gutierrez-Farewik

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