Effects of red bull energy drink on repeated sprint performance in women athletes

Abstract

Energy drinks are frequently consumed by athletes prior to competition to improve performance. This study examined the effect of Red Bull™ on repeated sprint performance in women athletes. Fifteen collegiate soccer players participated, with mean age, height, and body mass equal to 19.5±1.1 year, 168.4±5.8 cm, and 63.4±6.1 kg, respectively. After performing a familiarization trial, subjects performed three sets of eight bouts of the modified t test after ingestion of 255 mL of placebo or Red Bull 1 h pre-exercise in a randomized, placebo-controlled crossover design. Throughout testing, sprint time, heart rate (HR), and rating of perceived exertion (RPE) were continuously obtained. Repeated measures analysis of variance was used to examine differences in variables between drink conditions. Across athletes, t test time ranged from 10.4 to 12.7 s. Mean sprint time was similar (p>0.05) between Red Bull (11.31±0.61 s) and placebo (11.35±0.61 s). HR and RPE increased (p<0.05) during the bouts, but there was no effect (p>0.05) of Red Bull on either variable versus placebo. Findings indicate that 255 mL of Red Bull containing 1.3 mg/kg of caffeine and 1 g of taurine does not alter repeated sprint performance, RPE, or HR in women athletes versus placebo. One serving of this energy drink provides no ergogenic benefit for women athletes engaging in sprint-based exercise.

Caffeinated Energy Drinks Improve Volleyball Performance in Elite Female Players

“…Interestingly, the time needed to complete the test was 1.6% T 3.0% shorter when the women volleyball players ingested the caffeinated energy drink. These data coincide with previous publications in which the effectiveness of caffeinated drinks was tested with this same agility test in male volleyball players (10) and college athletes (2). Thus, the use of caffeinated energy drinks might be effective to increase the acceleration and speed of volleyball-specific movements.…”

“…Several investigations have determined the effectiveness of caffeine to improve sprinting (2,11,34), but the limited dimensions of the volleyball court preclude the attainment of maximal running velocity. A current investigation with male volleyball players has shown that the preexercise ingestion of a caffeinated energy drink reduced the time needed to complete the agility t-test, a test that mimics the movements produced in a volleyball game (10).…”

Caffeine supplementation improves countermovement jump in youth soccer players: a pilot study

“…Obtaining no effects in tests performance, caffeine was not able to improve performance. A specific energy drink has been examined on repeated sprint performance in woman athletes 9 . They performed the modified T test after the ingestion of 255mL of placebo or caffeinated energy drink providing 1.3mg/kg caffeine.…”

A Study Of Energy Drinks Consumption Practices Among Football Players In Aurangabad District Of Maharashtra In India

“…Most athletes rely on energy drinks, particularly because the term "energy drink" indicates that the product has a connection with physical activity. Hence, an ignorant user may assume that some benefits would be obtained after consuming these beverages [2]. Many energy drinks contain large amounts of sugar, caffeine as the main active ingredient, although some other substances like taurine, riboflavin, pyridoxine, vitamin B complex, nicotinamide, and various herbal derivatives (ginseng, guarana, and ginkgo biloba) may also be present [3].…”