Citation

Rudin-Brown CM, Clark B, Allen A, Mulvihill C, Filtness AJ. Proc. Australas. Road Safety Res. Policing Educ. Conf. 2011; 15.

Copyright

(Copyright © 2011, copyright holder varies, Publisher Monash University)

DOI

unavailable

PMID

unavailable

Abstract

The appropriateness of applying drink driving legislation to motorcycle riding has been questioned as there may be fundamental differences in the effects of alcohol on these two activities. Several psychomotor and higher-order cognitive skills underpinning riding performance appear to be significantly influenced by low levels of alcohol. It has been suggested that alcohol may redirect riders' focus from higher-order cognitive skills to more physical skills such as maintaining balance. The effects of low doses of alcohol on balance ability were investigated in a laboratory setting. The static balance of ten experienced riders was measured while they performed either no secondary task, a visual search task, or a cognitive (arithmetic) task following the administration of alcohol (0, 0.02, and 0.05 per cent BAC). Subjective ratings of intoxication and balance impairment increased in a dose-dependent manner; however, objective measures of static balance were negatively affected only at the .05 per cent BAC dose. Performance on a concurrent secondary visual search task, but not a purely cognitive (arithmetic) task, improved postural stability across all BAC levels. Finally, the .05 per cent BAC dose was associated with impaired performance on the cognitive (arithmetic) task, but not the visual search task, when participants were balancing, but neither task was impaired by alcohol when participants were standing on the floor. Implications for road safety and future "drink riding" policy considerations are discussed.