Sensorimotor and physiological effects of various alcoholic beverages.

Effects of a standard dose of alcohol (1.3 g/kg) in the form of Canadian rye whisky, Canadian beer and a sparkling table wine were compared with those of a nonalcoholic carbonated control beverage. Sixteen young male and eight female subjects, all moderate drinkers, were tested in a Latin square design. Measurements were made on the pursuit rotor and quantitative Romberg tests, and of skin temperature, heart rate, malar flush and blood alcohol concentration during the prealcohol baseline period and at regular intervals over the 4-hour drinking period. The three alcoholic beverages produced blood alcohol curves that did not differ significantly. All three alcoholic beverages produced increasing sensorimotor impairment over time, which corresponded in degree to the increasing blood alcohol concentration. There were no significant differences between the three beverages on either the sensorimotor or physiological measures at any blood alcohol value. The results of this study indicate that the degree of impairment after alcohol ingestion in a socially relevant manner is not dependent on the type of beverage consumed, but only on the resulting blood alcohol concentration.