주파수 영역에서의 근전도 분석을 통한 보행패턴에 관한 연구

In this study, as a basic research for the patients with amputation rehabilitation, time-frequency was confirmed through the STFT EMG during level ground walking and stair walking. The results of STFT were represented by spectrum and Mesh grid, according to the frequency of the gait cycle and features of the patterns are analyzed. Spectrum from all walk between 5-50 Hz with amplitudes was stronger , than based Giga swing with a wider frequency band was confirmed .The swing has bandwidth at based 5 Hz until 250 Hz to 300 Hz. And the stance has bandwidth, until 300 Hz to 450 Hz. Future research, STFT technique is thought to be more extensive analysis by a study on threshold setting of frequency. The results of this study is could contribute to effective rehabilitation methods at amputation patients is considered.