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An Effective Method of Gait Stability Analysis Using Inertial Sensors

  • Sung Kyung Hong
  • Jinhyung Bae
  • Sug-Chon Lee
  • Jung-Yup Kim
  • Kwon-Yong Lee
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4293)

Abstract

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.

Keywords

Fast Fourier Transform Gait Analysis Inertial Sensor Gait Stability Estimation Filter 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Sung Kyung Hong
    • 1
  • Jinhyung Bae
    • 1
  • Sug-Chon Lee
    • 1
  • Jung-Yup Kim
    • 1
  • Kwon-Yong Lee
    • 1
  1. 1.School of Mechanical and Aerospace EngineeringSejong UniversitySeoulKorea

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