Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Gait Imbalance Evaluation Algorithm based on Temporal Symmetry Ratio using Encoder

증감부호기를 이용한 순간 대칭비 기반 보행 불균형 평가

  • Kim, Seojun (Department of Electronic Engineering, Inha University) ;
  • Kim, Yoohyun (Department of Electronic Engineering, Inha University) ;
  • Shim, Hyeonmin (Institute for Information and Electronics Research, Inha University) ;
  • Yoon, Kwangsub (Department of Electronic Engineering, Inha University) ;
  • Lee, Sangmin (Department of Electronic Engineering, Inha University)
  • Received : 2013.12.26
  • Accepted : 2014.02.13
  • Published : 2014.02.28
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Abstract

In this paper, the gait imbalance evaluation algorithm based on temporal symmetry ratio using encoder is proposed. The device is attached to the hip joint in order to measure the angle during the normal gait. Using an angle data, the stance phase and swing phase was determined. And the value of TSR(temporal symmetry ratio) was calculated by stance phase and swing phase of gait cycle. For the comparative experiment, the conventional method of the foot pressure was measured at the same conditions. The results of statistical analysis, there was a significant difference (p < 0.05) when using encoder. The gait imbalance analysis using encoder is effective in determining the imbalance than using the existing method of pressure.

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References

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