Using electrocardiogram electrodes to monitor skin impedance spectroscopic response when skin is subjected to sustained static pressure.

This study suggests that using impedance spectroscopy to measure skin (stratum corneum) resistance may have utility in giving early warning of skin pressure injury prior to clinical symptoms, with a good correlation between observed erythema and reduction in skin resistance. Further work should be initiated on patients at risk of pressure injury to improve intervention strategies, including in darker skin tones where early-stage pressure injuries may not be visually distinct.