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Effect Of 5-hour Energy Shot® On Simulated Car Racing Ability in Sleep-deprived College-aged Individuals

2016; Lippincott Williams & Wilkins; Volume: 48; Linguagem: Inglês

10.1249/01.mss.0000485192.59280.28

1530-0315

P. J. Buckenmeyer, Larissa True, Stephen Yang, Jeffrey A. Bauer, Nicole Lindel, Ayden Wilber, Joseph W. O’Haire, Brandon J. Schrom,

Sleep and related disorders

The use of energy drinks has become commonplace in everyday activities, including sports. One of the more popular energy drinks on the market is the 5-Hour Energy Shot®. Commercial advertising of this drink suggests that one feels more awake and alert for hours while improving work and/or exercise performance. Published research supporting such claims is lacking. PURPOSE: To determine if ingesting one 5-Hour Energy Shot® compared to a placebo causes measurable improvement in performance related variables during a simulated driving task (SDT) in sleep-deprived subjects. METHODS: Nine (6 males, 3 females), college-aged (20.6 + 0.98 yrs; 1.7 + 0.08 m in ht; 74.0 + 10.18 kg in wt), volunteers participated in a double-blind, cross-over, placebo-based study. The participants were tested in a non-sleep-deprived state, and a sleep- deprived condition while driving a simulated race course. In the sleep-deprived state, subjects ingested either a randomly assigned non-caffeinated placebo (PL) (59 ml; 5 kcals) or the 5-Hour Energy Shot® (5HES) (59 ml; 4 kcals). Subsequently, data were collected at 5 consecutive time intervals (30-min, 1.5hr, 2.5hr, 3.5hr, and 4.5hr) after ingesting the drink. The SDT was a solo timed road race (Forza Horizon game) on an Xbox 360 gaming system. During each of the 6 data collection trials, heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), drive time (DT), and number of crashes (#C) were recorded. Subjects were also evaluated for drink effectiveness at each of same time points. A two-way repeated measures ANOVA was run to determine the effect of time and treatment (placebo vs 5-hr energy) on HR, SBP, DBP, DT, and #C. Significance was established at p < 0.05. RESULTS: There was no statistically significant two-way interaction between treatment and time for any of the variables (HR, SBP, DBP, DT, #C). However, for the 5-hr energy trials, post-drive HR decreased significantly by 11.714 bpm from the initial, non-sleep deprived trial to the final, sleep-deprived trial. CONCLUSION: When compared to a placebo, 5- Hour Energy Shot® did not significantly alter post-driving HR or BP measures, nor improve performance (race time or #crashes) of a simulated driving task in sleep-deprived college-aged participants.