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Authors: Takashi Watanabe ; Hiroki Saito ; Eri Koike and Kazuki Nitta

Affiliation: Tohoku University, Japan

Keyword(s): Gait, Gyroscope, Accelerometer, Joint angle, Kalman filter, Stride length.

Related Ontology Subjects/Areas/Topics: Biomedical Engineering ; Biomedical Signal Processing ; Devices ; Health Information Systems ; Human-Computer Interaction ; Monitoring and Telemetry ; Physiological Computing Systems ; Wearable Sensors and Systems

Abstract: The purpose of this study is to develop wearable sensor system for gait evaluation using gyroscopes and accelerometers for application to rehabilitation, healthcare and so on. In this paper, simultaneous measurement of joint angles of the lower limbs and stride length was tested with a prototype of wearable sensor system. The system measured the joint angles using the Kalman filter. Signals from the sensor attached on the foot were used in the stride length estimation detecting foot movement automatically. Joint angles of the lower limbs and the stride length were measured with reasonable accuracy compared to those values measured with optical motion measurement system with healthy subjects. Joint angle patterns measured in 10m walking with a healthy subject were similar to common patterns. High correlation between joint angles at some characteristic points and walking speed were also found adequately from measured data. The system was suggested to be able to detect characteristics o f gait. (More)

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Paper citation in several formats:
Watanabe, T.; Saito, H.; Koike, E. and Nitta, K. (2011). DEVELOPMENT OF WEARABLE GAIT EVALUATION SYSTEM - A Preliminary Test of Measurement of Joint Angles and Stride Length. In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2011) - BIOSIGNALS; ISBN 978-989-8425-35-5; ISSN 2184-4305, SciTePress, pages 245-250. DOI: 10.5220/0003163002450250

@conference{biosignals11,
author={Takashi Watanabe. and Hiroki Saito. and Eri Koike. and Kazuki Nitta.},
title={DEVELOPMENT OF WEARABLE GAIT EVALUATION SYSTEM - A Preliminary Test of Measurement of Joint Angles and Stride Length},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2011) - BIOSIGNALS},
year={2011},
pages={245-250},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003163002450250},
isbn={978-989-8425-35-5},
issn={2184-4305},
}

TY - CONF

JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing (BIOSTEC 2011) - BIOSIGNALS
TI - DEVELOPMENT OF WEARABLE GAIT EVALUATION SYSTEM - A Preliminary Test of Measurement of Joint Angles and Stride Length
SN - 978-989-8425-35-5
IS - 2184-4305
AU - Watanabe, T.
AU - Saito, H.
AU - Koike, E.
AU - Nitta, K.
PY - 2011
SP - 245
EP - 250
DO - 10.5220/0003163002450250
PB - SciTePress

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