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Driving performance on the descending limb of blood alcohol concentration (BAC) in undergraduate students : a pilot study

Tremblay Mathieu, Gallant François, Lavallière Martin, Chiasson Martine, Silvey Dustin, Behm David, Albert Wayne J. et Johnson Michel J.. (2015). Driving performance on the descending limb of blood alcohol concentration (BAC) in undergraduate students : a pilot study. PLoS ONE, 10, (2),

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URL officielle: http://dx.doi.org/10.1371/journal.pone.0118348

Résumé

Young drivers are overrepresented in collisions resulting in fatalities. It is not uncommon for young drivers to socially binge drink and decide to drive a vehicle a few hours after consumption. To better understand the risks that may be associated with this behaviour, the present study has examined the effects of a social drinking bout followed by a simulated drive in undergraduate students on the descending limb of their BAC (blood alcohol concentration) curve. Two groups of eight undergraduate students (n = 16) took part in this study. Participants in the alcohol group were assessed before drinking, then at moderate and low BAC as well as 24 hours post-acute consumption. This group consumed an average of 5.3 ± 1.4 (mean ± SD) drinks in an hour in a social context and were then submitted to a driving and a predicted crash risk assessment. The control group was assessed at the same time points without alcohol intake or social context.; at 8 a.m., noon, 3 p.m. and 8 a.m. the next morning. These multiple time points were used to measure any potential learning effects from the assessment tools (i.e. driving simulator and useful field of view test (UFOV)). Diminished driving performance at moderate BAC was observed with no increases in predicted crash risk. Moderate correlations between driving variables were observed. No association exists between driving variables and UFOV variables. The control group improved measures of selective attention after the third asessement. No learning effect was observed from multiple sessions with the driving simulator. Our results show that a moderate BAC, although legal, increases the risky behaviour. Effects of alcohol expectancy could have been displayed by the experimental group. UFOV measures and predicted crash risk categories were not sentitive enough to predict crash risk for young drivers, even when intoxicated.

Type de document:Article publié dans une revue avec comité d'évaluation
Volume:10
Numéro:2
Version évaluée par les pairs:Oui
Date:Février 2015
Sujets:Sciences de la santé
Département, module, service et unité de recherche:Départements et modules > Département des sciences de la santé > Programmes d'études en kinésiologie
Mots-clés:Alcohol drinking, attention, automobile driving, blood alcohol content, ethanol reaction time, students
Déposé le:21 oct. 2016 01:32
Dernière modification:25 nov. 2016 16:52
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