The present invention relates to an assembly comprising an elastic semi-conductive or conductive track and a flexible conductive support base arranged on a fabric. The present invention also relates to the use of a silicone rubber and/or fluorosilicone rubber loaded with an electrically conductive material for the preparation of the semi-conductive or conductive track, as well as to the use of a conductive fabric, that comprises conductive fibres for the preparation of the conductive support base. It further relates to a sensor comprising the assembly, wherein one of the flexible conductive support bases there is arranged a rigid electrical component, and the non-contact area of the other flexible conductive support base is adapted to be used as an electrode, wherein the electrode is characterized in that the conductive layer comprises a plurality of orificies filled with a silicone rubber and/or fluorosilicone rubber throughout the conductive area. The present invention also relates to a device comprising the sensor, as well as a garment comprising the device.La presente invención se refiere a un montaje que comprende una pista semiconductora o conductora elástica y una base de soporte conductora flexible dispuesto sobre una tela. La presente invención también se refiere al uso de una goma de silicona y/o goma de fluorosilicona cargada con un material eléctricamente conductor para la preparación de una pista semiconductora o conductora, así como el uso de una tela conductora, que comprende fibras conductoras para la preparación de la base de soporte conductora. Se refiere, además, a un sensor que comprende el montaje, en donde en una de las bases conductoras flexibles existe dispuesto un componente eléctrico rígido, y el área que no es de contacto de la otra base de soporte conductora flexible se adapta para utilizarse como un electrodo, en donde el electrodo se caracteriza porque la capa conductora comprende una pluralidad de orificios rellenos con una goma de sil
