El análisis del proceso de generación y propagación del AP lleva a las siguientes conclusiones importantes:

1. Las características de la señal EMGS son influenciadas significativamente por factores distintos a los de mayor interés para el estudio de procesos fisiológicos del sistema neuromuscular.


2. Cambios en el conductor de volumen, la colocación de los electrodos de superficie, pueden generar cambios en las características de la señal EMGS similares a los generados por procesos fisiológicos de interés. Esta situación, dificulta su interpretación y asociación con procesos fisiológicos de mayor interés.


3. Es indispensable definir las mejores prácticas en el uso de la EMGS para fines clínicos para mitigar los factores de variabilidad indeseados que pueden llevar a interpretaciones erróneas sobre el sistema neuromuscular.


4. Es necesario explorar nuevos enfoques de análisis de señal EMGS que sean menos sensibles a fuentes de variabilidad indeseadas.

Las aplicaciones clínicas de EMGS demandan confiabilidad y repetibilidad de las técnicas utilizadas para el diagnóstico y seguimiento de los pacientes [10].

La repetibilidad de las variables extraídas de la señal EMGS basadas en la estimación de la amplitud y la densidad de la potencia espectral, como RMS, ARV, MNF y MDF, mejora si se utiliza una metodología de estandarización y normalización como la sugerida por [26-30]. Sin embargo, no siempre es viable.

La repetibilidad de la variable ARV dentro de cada sujeto y entre sujetos mejora al aumentar la distancia inter-electrodos (IED). Pero es aplicable solo si se realiza contracción isométrica controlada a través de un sistema de bioretroalimentación que incluya un sensor de fuerza de mordida.

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