Impeto technology

A dynamic non invasive test

The below video describes the principle:

Impeto technology measures the capacity of the sweat glands to release chloride ions in response to an electrochemical activation. It is a dynamic test equivalent to a stress test.

A low voltage potential of variable amplitude is applied to electrodes on regions of the skin with a high density of sweat glands (hands and feet) to extract chloride from the sweat and produce a current. At a low voltage, the stratum corneum acts as a capacitor and only the sweat ducts allow the transmission of ions from the skin. This ensures that measurements correspond to the local sweat function.

An electrochemical reaction with the electrodes is measured

An electrochemical reaction between the chloride and the nickel electrodes is observed producing an electrical potential difference. [1].

Electrochemical reaction on the electrodes is marked by the onset of a non-linear response to the applied potential. The point of deviation is a measure for chloride ion balance in sweat gland ducts.