Please view abstract in the attached PDF file

Braun, W, FACSM

Chattin, K

Dell, C

Latham, T

Morris, E

Veerabhadrappa, P

Wert, D

Wert, S

Young, A

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The Effects of Energy Drinks on Anaerobic Human Performance and Mood Kelsey Chattin, Cortlin Dell, Timothy Latham, Erica Morris, Dana Wert, Shawna Wert, Allison Young, Praveen Veerabhadrappa, William Braun, FACSM.  Shippensburg University, Shippensburg, PA  PURPOSE: The aim of the study was to examine the effects of a commercially available energy drink (ED), containing 140 mg caffeine, on anaerobic performance using the standard Wingate test protocol. METHODS: Eight volunteers (5 male and 3 female); (19.7±4.24 yr; 86.9±15.2 kg) from Shippensburg University participated in the study. Subjects were randomly assigned to consume ED or placebo (PL) treatments 30 min prior to exercise. A cross-over design was used with a minimum of 72 h between trials. The subjects performed a standard 30-second Wingate test using a Monark 894e ergometer. Seated measurements (heart rate and blood pressure) were taken 30-min after treatment consumption (PL or ED) and upon completion of the Wingate protocol RESULTS: A paired samples t-test showed that there was no significant difference in peak power (p = .332), mean power (p = .188), pre-ex (p=.843) or post-exercise (p=.663) systolic blood pressure (SBP). However, fatigue index revealed a trend (p =.086) for less power decay under the PL condition. Treatment Peak Power (kgm.sec-1) Mean Power (kgm.sec-1) Fatigue Index (%) Resting SBP (mmHg) Post-Ex SBP (mmHg) Energy Drink 66.6± 9.02 57.2± 7.61 36.2± 4.32 119.3± 2.71 138.25 ±5.47 Placebo 69.4± 9.90 58.8± 7.52 27.2± 3.18 120.1± 2.35 141.87±5.48  Data are mean ± S.E. CONCLUSION: The results of this study suggest that ingestion of a commercially available energy drink 30-min prior to explosive, anaerobic exercise does not improve anaerobic exercise performance.  

The Effects of Energy Drinks on Anaerobic Human Performance and Mood

http://digitalcommons.wku.edu/cgi/viewcontent.cgi?article=2333&context=ijesab

The Effects of Energy Drinks on Anaerobic Human Performance and Mood

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