Effects of energy drinks on blood pressure, heart rate, and electrocardiographic parameters: An experimental study on healthy young adults

Shokoufeh Hajsadeghi, Fatemeh Mohammadpour, Mohammad Javad Manteghi, Kiarash Kordshakeri, Masoud Tokazebani, Elham Rahmani, Morteza Hassanzadeh, Shokoufeh Hajsadeghi, Fatemeh Mohammadpour, Mohammad Javad Manteghi, Kiarash Kordshakeri, Masoud Tokazebani, Elham Rahmani, Morteza Hassanzadeh

Abstract

Objective: To evaluate the effects of the consumption of energy drinks on cardiovascular parameters in a group of healthy young individuals.

Methods: In a quasi-experimental study, 44 healthy adult participants aged between 15 and 30 years were evaluated. The blood pressure (BP) as well as electrocardiographic indices, including heart rate (HR), PR interval, QRS duration, corrected QT (QTc) interval, and ST-T changes were recorded before consumption of a caffeine-containing energy drink and at the specific time points over a 4-h test duration.

Results: We found statistically significant HR decline (p=0.004) and more frequent ST-T changes (p=0.004) after the participants consumed the energy drink. However, readings for systolic BP (p=0.44), diastolic BP (p=0.26), PR interval (p=0.449), QRS duration (p=0.235), and QTc interval (p=0.953) showed no significant change post-consumption.

Conclusion: In conclusion, we demonstrated that the consumption of energy drinks could contribute to HR decline and ST-T change in healthy young adults.

Conflict of interest statement

Conflict of interest: None declared. All of the expenses of the present study were covered by agrant from Iran University of Medical Sciences.

Figures

Figure 1
Figure 1
Systolic blood pressure (mean) of the participants during the test. Analysis by repeated measures ANOVA
Figure 2
Figure 2
Diastolic blood pressure (mean) of the participants during the test. Analysis by repeated measures ANOVA
Figure 3
Figure 3
Heart rate (mean) of the participants during the test. Analysis by repeated measures ANOVA

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Source: PubMed

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