Key result
Alcohol consumption increased heart rate and earlobe blood flow, and significantly decreased fingertip pulse wave amplitude during an arm-raising test.
Why the study?
Does alcohol ingestion affect peripheral blood flow and pulse wave amplitude as measured by a micro-integrated laser Doppler blood flow meter?
Observational
Does alcohol ingestion affect peripheral blood flow and pulse wave amplitude as measured by a micro-integrated laser Doppler blood flow meter?
A micro-electromechanical system blood flow sensor combined with an arm-raising test can successfully detect physiological changes in peripheral blood circulation induced by alcohol consumption.
Answers are grounded in this paper and cite their sources.
May confound peripheral flow test interpretation post-alcohol; leaves open MEMS sensor validation for hemodynamic research.
Alcohol has a variety of effects on the human body, affecting both the sympathetic and parasympathetic nervous system. We examined the peripheral blood flow of alcohol drinkers using a micro-integrated laser Doppler blood flow meter (micro-electromechanical system blood flow sensor). An increased heart rate and blood flow was recorded at the earlobe after alcohol ingestion, and we observed strong correlation between blood flow, heart rate, and breath alcohol content in light drinkers; but not heavy drinkers. We also found that the amplitude of pulse waves measured at the fingertip during an arm-raising test significantly decreased on alcohol consumption, regardless of the individual's alcohol tolerance. Our micro-electromechanical system blood flow sensor successfully detected various physiological changes in peripheral blood circulation induced by alcohol consumption.
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Iwasaki et al. (2012) conducted an observational in Alcohol consumption. Alcohol ingestion was evaluated on Peripheral blood flow, heart rate, and pulse wave amplitude. Alcohol consumption increased heart rate and earlobe blood flow, and significantly decreased fingertip pulse wave amplitude during an arm-raising test.
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