Dispositivo para aquisição de sinais eletromiográficos

Abstract

Electromyography (EMG) is a method that makes it possible to record electrical signals from a muscle group during a contraction. This method can be: invasive, with the use of needle electrodes; or non-invasive (surface), with the application of electrodes positioned on the skin. Surface electromyography (EMG-S) is used both in clinical applications and in scientific research, having the advantage of providing neuromuscular assessment in a non-invasive way. On the market, there are closed hardware and software equipment, that is, equipment sold without electronic circuit information or source code available for consultation. Such equipment on the market is used in research to detect muscle fatigue, develop control of robotic prostheses, survey muscular statistical parameters and recognize neurological events. Soon, it was found that a similar device with open code and hardware could be developed. That said, this work will take as a basis the work previously and will assemble a new multichannel device. The modifications to be made will be: modify the structure of the bracelet from the previous work; develop new electronic boards for installing wired communication; create a program in C language for an MSP430 microcontroller and use a computer program to receive data. Therefore, the aim of this work is to develop an EMG-S Armband that will use electrodes for EMG-S, with the characteristic of receiving electromyographic signals using wired communication.