Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Real-time 3-Dimensional Measurement of Lumbar Spine Range of Motion using a Wireless Sensor

무선 센서를 활용한 요추 가동 범위의 실시간 3차원 측정

  • 정우혁 (인하대학교 정보통신공학과) ;
  • 지혜미 (울산대학교 의과대학 의과학과) ;
  • 박재현 (인하대학교 정보통신공학과)
  • Received : 2012.05.15
  • Accepted : 2012.06.30
  • Published : 2012.08.01
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Abstract

Lumber spine range of motion has been used to measure of physical and functional impairment by various tools from a ruler to 3D kinematic devices. However, pre-existing tools have problems in either movement or accuracy and reliability limitations. Accurate devices are limited by fixed space whereas simple devices are limited in measuring complex movements with less accuracy. In order to solve the location, movement and accuracy limitations at once, we have developed a novice measurement device equipped with accelerometer sensor and gyroscope sensor for getting three-dimensional information of motion. Furthermore, Kalman filter was applied to the algorithm to improve accuracy. In addition, RF wireless communication was added for the user to conveniently check measured data in real time. Finally, the measurement method was improved by considering the movement by a reference point. An experiment was conducted to test the accuracy and reliability of the device by conducting a test-retest reliability test. Further modification will be conducted to used the device in various joints range of motion in clinical settings in the future.

Keywords

References

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