Scholarly Horizons: University of Minnesota, Morris Undergraduate Journal

Document Type



Objective: To investigate if brake reaction times improve for college aged students after consuming an energy drink (ED).

Design: Cross-sectional.

Setting: College Setting Participants: 103 college aged participants (1=35, 2=34, 3=34). Brake reaction time tested 30 minutes post consumption of ED drink containing either 150 mg of caffeine, 34 mg of caffeine, or 0 mg of caffeine (placebo). Completion of Rand SF-36 general health and the General Knowledge Questionnaire for Adults surveys.

Results: All groups improved brake reaction time from pre-to post-test. When comparing brake reaction time between groups, no statistical differences occurred.

Conclusions: The majority of college students consumed caffeinated EDs primarily to improve their focus. However, consuming these drinks did not influence brake reaction times during sudden stops or while anticipating a stop. Therefore, college aged students should avoid relying on these drinks for safety when operating a motor vehicle.

Primo Type