Effect of Physical Exercise after Drinking on the Change of Breath Alcohol Concentrations

Abstract

  This study is aiming to examine the effect of physical exercise after drinking on the change of breath alcohol concentration (BrAC). Eleven healthy volunteer subjects (9 males and 2 females), age : 23 to 50 (30 ± 7.0) years old, body weight : 43 to 87 (64 ± 11.3) kg, were administered 700 ml of beer (alc. 5.5%) with 35g of snacks within 15 minutes after an overnight fast. Ten minutes after the end of drinking, the subjects were given physical exercise of a footstool going up and down movement for one minute. BrACs of the subjects were measured in every 30 minutes using infrared breath analyser. Those experiments without physical exercise were repeated on each subject in another day. Widmark's equation was fitted to each BrAC profile by the least square method and the parameters (C₀, β, γ, ethanol degradation rate, time to BrAC = 0) were calculated. T - test (significance level : 5%) showed no significant differences between the parameters in the experiments with physical exercise and in control condition. It is concluded that physical exercise of one minute footstool going up and down did not show any effect on the change of BrAC after alcohol drinking.