Técnicas biomecánicas en ergonomía : Implementación de un dispositivo activo Shield-Ekg-Emg para la adquisición de bioseñales.

Abstract

This component comprises the implementation of an EKG-EMG Shield for the acquisition of muscle signals, through an interface developed in Matlab's APP Designer, interconnected with an Arduino board, pre-programmed. Additionally, it contains a testing protocol, consisting of the generation of five cycles of muscle movements to stimulate the Biceps located in the arm. This testing protocol will be used to compare the signal acquired through the Shield with a second signal obtained by the Delsys equipment available in the Bioengineering Laboratory of the Faculty of Mechanical Engineering at the National Polytechnic School. The signals will be compared through signal processing based on time, zero crossings. Before this section, the digitization of these signals is shown, as well as their phases of smoothing, vectorization, and interpolation. Finally, the normalization phase of the two acquired signals is shown, verified by statistical methods, in order to obtain an error between 3% and 8% (ideal confidence range)