| Title |
A Study on the Design of Low Back Muscle Evaluation System Using Surface EMG |
| Authors |
이태우(Lee Tae-Woo) ; 고도영(Ko Do-Young) ; 정철기(Jung Chul-Ki) ; 김인수(Kim In-Soo) ; 강원희(Kang Won-Hee) ; 이호용(Lee Ho-Yong) ; 김성환(Kim Sung-Hwan) |
| Keywords |
Surface EMG ; Low Back Muscle ; Evaluation System ; Static and Dynamic Contraction |
| 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. |