가속도센서와 근전도를 이용한 정상인의 보행주기 분석에 관한 연구

In this study, the gait cycle of ground walking was analysed and defined using triaxis acceleration sensor and pressure sensor. And then we evaluated the electromyogram (EMG) signal of these interval to evaluate the gate of normal person. The gait cycle was distinguished by pressure signals of heal strike and toe off. the ratio of stance to swing period was 58.76 to 41.24. The signal of acceleration sensor represented repetitive pattern according to gait period. the Z-axis signal showed the highest value in heel strike stage, and the highest value of X-axis signal was confirmed when the leg is lifted. With the RMS of EMG signal, we confirmed that the more muscle tensions is consumed in stance period than swing period. The IEMG value of stance period was higher than swing period. Consequently, we confirmed the usefulness of acceleration signal of upper leg to analyse the EMG signal for the gait pattern evaluation.