본 연구에서는 사지마비 장애인이 활용할 수 있는 동작을 이용하여 마우스, 문자 입력, 전동휠체어 제어 등에 활용될 수 있는 인터페이스 기술을 개발하였다. 사지마비 장애인이 활용 가능하면서도 착용이 쉽고 데이터 처리가 용이한 동작으로서 이물기 동작을 제안하였다. 좌측, 우측 및 양측 이물기 동작 및 이물기 시간의 조절을 통해 사지마비 장애인의 경우에도 다양한 명령어 형성이 가능하다. 이때, 이물기 동작의 인식은 관자놀이 부근에 위치한 관자근에서의 근전도 신호를 이용하였다. 본 연구에서는 데이터를 획득하여 전송하고 처리하기 위한 하드웨어와 소프트웨어를 함께, 전동휠체어 제어를 위한 응용 시스템도 개발하였다. 또한 개발된 시스템을 사지마비 장애인에게 적용하여 그 효용성을 평가하였다.
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