Spectroscopic study and analysis of the impact of alcohol intake on bio-impedance of the human body

Abstract

This paper examines the bio-impedance of the human body, and considers the impact of alcohol intake on said bio-impedance. We examine the feasibility of alcohol intake detection via the bio-impedance modulation created by alcohol intake. We successfully capture the pulsation effect appearing in the artery from bio-impedance variation. It is demonstrated that the bio-impedance method has great potential in detecting alcohol intake.

Advanced technique to suppress subject variability for bio-impedance based alcohol-intake detection

“…The alcohol intake not only raises the blood pressure, but also leaves toxic chemicals (acetaldehyde and acetate) in the biological systems. In the previous study, we used spectral intensity difference to detect alcohol intake under various conditions [4,5]. However, the subjects' variability (including health condition) made it difficult to reliably identify the alcohol-intake state from the other states.…”

“…1 [4,5]. While the past paper [6] concentrated on the evaluation of heart rate, here we concentrate on the local bio-impedance modulation due to pulsation.…”

“…This suggests that we can observe the side band of the source signal because the pulsation signal is mixed [5]. This study assumes that the source signal is a 500-Hz sinusoidal wave.…”

“…Previous studies on bio-impedance-based alcohol-intake detection [4,5] did not yield successful criteria that permit the reliable detection of alcohol intake.…”

Impact of electrode configuration on bio-impedance measurements

“…Previous studies on bio-impedance-based alcoholintake detection [4,5] did not yield successful criteria that would permit the reliable detection of alcohol intake. This paper investigates how we can pick up bioimpedance modulation signals with less noise.…”