Acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety: a randomized, double-blind, placebo-controlled, crossover trial

The aim of this study was to examine the acute effects of a non-caloric energy drink (C4E) compared to a traditional sugar-containing energy drink (MED) and non-caloric placebo (PLA) on exercise performance and cardiovascular safety. Thirty healthy, physically active males (25 ± 4 y) completed three...

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Main Authors: Nile F. Banks, Emily M. Rogers, Nate J. Helwig, Laura E. Schwager, Justin P. Alpers, Sydni L. Schulte, Emma R. Trachta, Christopher M. Lockwood, Nathaniel D.M. Jenkins
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Journal of the International Society of Sports Nutrition
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Online Access:https://www.tandfonline.com/doi/10.1080/15502783.2023.2297988
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author Nile F. Banks
Emily M. Rogers
Nate J. Helwig
Laura E. Schwager
Justin P. Alpers
Sydni L. Schulte
Emma R. Trachta
Christopher M. Lockwood
Nathaniel D.M. Jenkins
author_facet Nile F. Banks
Emily M. Rogers
Nate J. Helwig
Laura E. Schwager
Justin P. Alpers
Sydni L. Schulte
Emma R. Trachta
Christopher M. Lockwood
Nathaniel D.M. Jenkins
author_sort Nile F. Banks
collection DOAJ
description The aim of this study was to examine the acute effects of a non-caloric energy drink (C4E) compared to a traditional sugar-containing energy drink (MED) and non-caloric placebo (PLA) on exercise performance and cardiovascular safety. Thirty healthy, physically active males (25 ± 4 y) completed three experimental visits under semi-fasted conditions (5–10 h) and in randomized order, during which they consumed C4E, MED, or PLA matched for volume, appearance, taste, and mouthfeel. One hour after drink consumption, participants completed a maximal, graded exercise test (GXT) with measurement of pulmonary gases, an isometric leg extension fatigue test (ISOFTG), and had their cardiac electrical activity (ECG), leg blood flow (LBF), and blood pressure (BP) measured throughout the visit. Neither MED nor C4E had an ergogenic effect on maximal oxygen consumption, time to exhaustion, or peak power during the GXT (p > 0.05). Compared to PLA, MED reduced fat oxidation (respiratory exchange ratio (RER) +0.030 ± 0.01; p = 0.026) during the GXT and did not influence ISOFTG performance. Compared to PLA, C4E did not alter RER (p = 0.94) and improved impulse during the ISOFTG (+0.658 ± 0.25 V·s; p = 0.032). Relative to MED, C4E did not significantly improve gas exchange threshold (p = 0.05–0.07). Both MED and C4E increased systolic BP at rest (+7.1 ± 1.2 mmHg; p < 0.001 and + 5.7 ± 1.0 mmHg; p < 0.001, respectively), C4E increased SBP post-GXT (+13.3 ± 3.8 mmHg; p < 0.001), and MED increased SBP during recovery (+3.2 ± 1.1 mmHg; p < 0.001). Neither MED nor C4E influenced ECG measures (p ≥ 0.08) or LBF (p = 0.37) compared to PLA. C4E may be more efficacious for improving performance in resistance-type tasks without altering fat oxidation under semi-fasted conditions during fatiguing exercise bouts, but promotes similar changes in BP and HR to MED.
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spelling doaj-art-6dae7a3f985046abb753294bc95a8c112024-12-12T06:10:58ZengTaylor & Francis GroupJournal of the International Society of Sports Nutrition1550-27832024-12-0121110.1080/15502783.2023.2297988Acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety: a randomized, double-blind, placebo-controlled, crossover trialNile F. Banks0Emily M. Rogers1Nate J. Helwig2Laura E. Schwager3Justin P. Alpers4Sydni L. Schulte5Emma R. Trachta6Christopher M. Lockwood7Nathaniel D.M. Jenkins8University of Iowa, Integrative Laboratory of Applied Physiology and Lifestyle Medicine, Iowa City, IA, USAUniversity of Iowa, Integrative Laboratory of Applied Physiology and Lifestyle Medicine, Iowa City, IA, USAUniversity of Iowa, Integrative Laboratory of Applied Physiology and Lifestyle Medicine, Iowa City, IA, USAUniversity of Iowa, Integrative Laboratory of Applied Physiology and Lifestyle Medicine, Iowa City, IA, USAUniversity of Iowa, Integrative Laboratory of Applied Physiology and Lifestyle Medicine, Iowa City, IA, USAUniversity of Iowa, Integrative Laboratory of Applied Physiology and Lifestyle Medicine, Iowa City, IA, USAUniversity of Iowa, Integrative Laboratory of Applied Physiology and Lifestyle Medicine, Iowa City, IA, USADr. Chris Lockwood, LLC, Casper, WY, USAUniversity of Iowa, Integrative Laboratory of Applied Physiology and Lifestyle Medicine, Iowa City, IA, USAThe aim of this study was to examine the acute effects of a non-caloric energy drink (C4E) compared to a traditional sugar-containing energy drink (MED) and non-caloric placebo (PLA) on exercise performance and cardiovascular safety. Thirty healthy, physically active males (25 ± 4 y) completed three experimental visits under semi-fasted conditions (5–10 h) and in randomized order, during which they consumed C4E, MED, or PLA matched for volume, appearance, taste, and mouthfeel. One hour after drink consumption, participants completed a maximal, graded exercise test (GXT) with measurement of pulmonary gases, an isometric leg extension fatigue test (ISOFTG), and had their cardiac electrical activity (ECG), leg blood flow (LBF), and blood pressure (BP) measured throughout the visit. Neither MED nor C4E had an ergogenic effect on maximal oxygen consumption, time to exhaustion, or peak power during the GXT (p > 0.05). Compared to PLA, MED reduced fat oxidation (respiratory exchange ratio (RER) +0.030 ± 0.01; p = 0.026) during the GXT and did not influence ISOFTG performance. Compared to PLA, C4E did not alter RER (p = 0.94) and improved impulse during the ISOFTG (+0.658 ± 0.25 V·s; p = 0.032). Relative to MED, C4E did not significantly improve gas exchange threshold (p = 0.05–0.07). Both MED and C4E increased systolic BP at rest (+7.1 ± 1.2 mmHg; p < 0.001 and + 5.7 ± 1.0 mmHg; p < 0.001, respectively), C4E increased SBP post-GXT (+13.3 ± 3.8 mmHg; p < 0.001), and MED increased SBP during recovery (+3.2 ± 1.1 mmHg; p < 0.001). Neither MED nor C4E influenced ECG measures (p ≥ 0.08) or LBF (p = 0.37) compared to PLA. C4E may be more efficacious for improving performance in resistance-type tasks without altering fat oxidation under semi-fasted conditions during fatiguing exercise bouts, but promotes similar changes in BP and HR to MED.https://www.tandfonline.com/doi/10.1080/15502783.2023.2297988Caffeinemaximal oxygen uptakemuscular enduranceblood pressureventricular repolarization
spellingShingle Nile F. Banks
Emily M. Rogers
Nate J. Helwig
Laura E. Schwager
Justin P. Alpers
Sydni L. Schulte
Emma R. Trachta
Christopher M. Lockwood
Nathaniel D.M. Jenkins
Acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety: a randomized, double-blind, placebo-controlled, crossover trial
Journal of the International Society of Sports Nutrition
Caffeine
maximal oxygen uptake
muscular endurance
blood pressure
ventricular repolarization
title Acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety: a randomized, double-blind, placebo-controlled, crossover trial
title_full Acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety: a randomized, double-blind, placebo-controlled, crossover trial
title_fullStr Acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety: a randomized, double-blind, placebo-controlled, crossover trial
title_full_unstemmed Acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety: a randomized, double-blind, placebo-controlled, crossover trial
title_short Acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety: a randomized, double-blind, placebo-controlled, crossover trial
title_sort acute effects of commercial energy drink consumption on exercise performance and cardiovascular safety a randomized double blind placebo controlled crossover trial
topic Caffeine
maximal oxygen uptake
muscular endurance
blood pressure
ventricular repolarization
url https://www.tandfonline.com/doi/10.1080/15502783.2023.2297988
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