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Erschienen in:
2006 | OriginalPaper | Buchkapitel
An Effective Method of Gait Stability Analysis Using Inertial Sensors
verfasst von : Sung Kyung Hong, Jinhyung Bae, Sug-Chon Lee, Jung-Yup Kim, Kwon-Yong Lee
Erschienen in: MICAI 2006: Advances in Artificial Intelligence
Verlag: Springer Berlin Heidelberg
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This study aims to develop an effective measurement instrument and analysis method of gait stability, particularly focused on the motion of lower spine and pelvis during gait. Silicon micromechanical inertial instruments have been developed and body-attitude (pitch and roll) angles were estimated via closed-loop strapdown estimation filters, which results in improved accuracy of estimated attitude. Also, it is shown that the spectral analysis utilizing the Fast Fourier Transform (FFT) provides an efficient analysis method, which provides quantitative diagnoses for the gait stability. The results of experiments on various subjects suggest that the proposed system provides a simplified but an efficient tool for the evaluation of both gait stabilities and rehabilitation treatments effects.