Does an energy drink modify the effects of alcohol in a maximal effort test?

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dc.contributor.authorFerreira, Sionaldo Eduardo [UNIFESP]
dc.contributor.authorMello, Marco Tulio de [UNIFESP]
dc.contributor.authorRossi, Marcio Vinícius [UNIFESP]
dc.contributor.authorSouza-Formigoni, Maria Lucia Oliveira de [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T12:37:22Z
dc.date.available2016-01-24T12:37:22Z
dc.date.issued2004-09-01
dc.description.abstractBackground: There are popular reports on the combined use of alcohol and energy drinks (such as Red Bull(R) and similar beverages, which contain caffeine, taurine, carbohydrates, etc.) to reduce the depressant effects of alcohol on central nervous system, but no controlled studies have been performed. the main purpose of this study was to verify the effects of alcohol, and alcohol combined with energy drink, on the performance of volunteers in a maximal effort test (cycle ergometer) and also on physiological indicators (oxygen uptake, ventilatory threshold, respiratory exchange rate, heart rate, and blood pressure), biochemical variables (glucose, lactate, insulin, cortisol, ACTH, dopamine, noradrenaline, and adrenaline), and blood alcohol levels.Methods: Fourteen healthy subjects completed a double-blind protocol made up of four sessions: control (water), alcohol (1.0 g/kg), energy drink (3.57 ml/kg Red Bull(R)), and alcohol + energy drink, each 1 week apart. the effort test began 60 min after drug or control ingestion, and the dependent variables were measured until 60 min after the test.Results: Heart rate at the ventilatory threshold was higher in the alcohol and alcohol + energy drink sessions in comparison with control and energy drink sessions. Although in comparison to the control session, the peak oxygen uptake was 5.0% smaller after alcohol ingestion, 1.4% smaller after energy drink, and 2.7% smaller after the combined ingestion, no significant differences were detected. Lactate levels (30 min after drug ingestion, 30 and 60 min after the effort test) and noradrenaline levels (30 min after the effort test) were higher in the alcohol and alcohol + energy drink sessions compared with the control session.Conclusions: the performance in the maximal effort test observed after alcohol + energy drink ingestion was similar to that observed after alcohol only. No significant differences between alcohol and alcohol + energy drink were detected in the physiological and biochemical parameters analyzed. Our findings suggest that energy drinks, at least in the tested doses, did not improve performance or reduce alterations induced by acute alcohol ingestion.en
dc.description.affiliationUniversidade Federal de São Paulo, Dept Psychobiol, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Psychobiol, São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent1408-1412
dc.identifierhttps://dx.doi.org/10.1097/01.ALC.0000139822.74414.EC
dc.identifier.citationAlcoholism-clinical and Experimental Research. Philadelphia: Lippincott Williams & Wilkins, v. 28, n. 9, p. 1408-1412, 2004.
dc.identifier.doi10.1097/01.ALC.0000139822.74414.EC
dc.identifier.issn0145-6008
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/27928
dc.identifier.wosWOS:000224074300018
dc.language.isoeng
dc.publisherLippincott Williams & Wilkins
dc.relation.ispartofAlcoholism-clinical and Experimental Research
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectVO2en
dc.subjectAlcoholen
dc.subjectEnergy drinksen
dc.subjectCaffeineen
dc.subjectTaurineen
dc.titleDoes an energy drink modify the effects of alcohol in a maximal effort test?en
dc.typeinfo:eu-repo/semantics/article
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