Why should I wet or use a conductive cream on my cardiac sensors?

To obtain a better signal, it is suggested to apply conductive gel (or simply glycerin-based cream). Our cardiac sensors record electrical activity on the surface of the skin. Since skin cells are considered as good resistors, without any conductive agent, it becomes very difficult to record accurately any electrical activity.

Keywords: cardiac electrode, textile electrode, conductivity, quality signal, water, sweat, moist, moister