Energy Drinks – ABC CARDIOL

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Editorial

The Action of the Energy Drink on the Recovery Heart Rate is Independent of the Functional Capacity

Rodrigo Freire Dutra et al. Francisco Eberth Marinho Marques Luciana Diniz Nagem Janot de Matos

The consumption of caffeinated energy drinks (ED) has increased considerably in recent years. Increased ability to concentrate, gain in work performance and increased performance in physical activity are some of the reasons that lead to the search for the drink.

During the pandemic, with changes in routine imposed by the need for social isolation, some works reported an increase in ED intake. There was also greater consumption in the young population motivated by factors such as better performance in sports and the ability to concentrate.^,

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Original Article

Acute Effects of Energy Drink on Autonomic and Cardiovascular Parameters Recovery in Individuals with Different Cardiorespiratory Fitness: A Randomized, Crossover, Double-Blind and Placebo-Controlled Trial

Andrey Alves Porto et al. Luana Almeida Gonzaga Cicero Jonas R Benjamim Carlos Roberto Bueno Jr … David M. Garner Luiz C.M Vanderlei Celso Ferreira Vitor Engrácia Valenti

Abstract

Background

It has been suggested that the consumption of energy drinks (ED) may affect cardiovascular activity.

Objectives

to investigate the acute effects of ED intake on heart rate variability (HRV) and cardiovascular recovery after moderate aerobic exercise in males with different cardiorespiratory capacities.

Methods

This is a randomized, double-blind, crossover, placebo-controlled study. Twenty-eight young adults were split into two groups according to their peak oxygen consumption (VO2peak) values: (1) High VO2 peak (HO) – VO2 peak > 52.15 mL/kg/min, and (2) low VO2 peak (LO) – peak VO2 <52.15 mL/kg/min. Subjects of both groups underwent two exercise protocols in randomized order: moderate aerobic exercise (60% of VO2peak) following the intake of 250 mL of water (placebo protocol) or 250 mL of ED (ED protocol). During the exercise tests, values of cardiorespiratory and HRV parameters were recorded.

Results

Significant differences were observed for the LF (normalized units) index between rest and Rec1 in HO energy and LO groups during the ED protocol. For the LF/HF ratio, significant differences were seen between rest and Rec1 in HO and LO during ED protocols.

Conclusion

Acute ED intake delayed heart rate recovery after exercise in subjects with low and high cardiorespiratory fitness.