A Study on the Design of Low Back Muscle Evaluation System Using Surface EMG

표면근전도를 이용한 허리근육 평가시스템의 설계에 관한 연구

  • 이태우 (서울시립대 전자전기컴퓨터공학부) ;
  • 고도영 (서울시립대 전자전기컴퓨터공학부) ;
  • 정철기 (서울시립대 전자전기컴퓨터공학부) ;
  • 김인수 (서울시립대 전자전기컴퓨터공학부) ;
  • 강원희 (서울시립대 전자전기컴퓨터공학부) ;
  • 이호용 (서울시립대 전자전기컴퓨터공학부) ;
  • 김성환 (서울시립대 전자전기컴퓨터공학부)
  • Published : 2005.05.01

Abstract

A computer-based low back muscle evaluation system was designed to simultaneously acquire, process, display, quantify, and correlate electromyographic(EMG) activity with muscle force, and range of motion(ROM) in the lumbar muscle of human. This integrated multi-channel system was designed around notebook PC. Each channel consisted of a time and frequency domain block, and T-F(time-frequency) domain block. The captured data in each channel was used to display and Quantify : raw EMG, histogram, zero crossing, turn, RMS(root mean square), variance, mean, power spectrum, median frequency, mean frequency, wavelet transform, Wigner-Ville distribution, Choi-Williams distribution, and Cohen-Posch distribution. To evaluate the performance of the designed system, the static and dynamic contraction experiments from lumbar(waist) level of human were done. The experiment performed in five subjects, and various parameters were tested and compared. This system could equally well be modified to allow acquisition, processing, and analysis of EMG signals in other studies and applications.

Keywords

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