Conventional electrodes make contact with the skin through an electrolyte paste.
When the paste dries the data being generated can be distorted. Other non-paste electrodes can often produce a higher background noise when the electrode exhibits motion such as during exercise. Through NASA-granted research a new type of electrocardiographic electrode, an insulated device made of thin dielectric film, was developed by scientists at Texas Tech University. This dry, reusable electrode works upon contact with the skin and is not affected by heat, cold, light, perspiration, or rough or oily skin. In addition, it prevents the background noise that can occur while during exercise.