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Prins, Philip (2015) THE EFFECT OF ENERGY DRINK INGESTION ON 5-KM RUNNING PERFORMANCE IN RECREATIONAL ENDURANCE RUNNERS. Doctoral Dissertation, University of Pittsburgh. (Unpublished)

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Introduction: The use of pre-exercise energy drinks has become a popular supplementation habit among recreational and competitive athletic populations. It is common for athletes to consume energy drinks prior to athletic competition, yet it is unresolved whether this is an effective strategy to increase performance, especially in short duration high intensity events. Purpose: The purpose of this study was to evaluate physiological and perceptual responses to exercise performance of recreational endurance runners after they ingested a commercially available energy drink (Red Bull) containing caffeine, glucose, and Taurine. Methods: Recreational endurance runners (n = 18, 13 men, 5 women, 20.39 ± 3.27 years, 71.25 ± 17.17 kg, 178.00 ± 7.57, 55.94 ± 7.66 VO2max) participated in a double blind, crossover, repeated measures study where they were randomized to supplement with 500 ml of the commercially available energy drink Red Bull and non-caffeinated, sugar-free placebo 60 minutes before completing a 5-km time trial; separated by seven days. Heart rate, RPE (RPE-O; RPE-C; RPE-L), and affect were recorded at rest, 1-hr post ingestion, at 5-minute intervals during the 5-km time trial, and immediately post exercise. A Session RPE and session Affect were obtained 5 minutes following completion of the 5-km time trial. The distance covered at each 5 min interval during the 5-km time trial was recorded. Results: Performance improved with ED compared with placebo (Red Bull: 1,413.2 ± 169.7 s vs. PLA: 1,443.6 ±179.2 s; p = 0.016), but there were no differences in ratings of perceived exertion, affect, session RPE, session affect, or the distance covered at 5 min splits between the two 5-km time trials (p > 0.05). Conclusion: These results demonstrate that consuming a commercially available ED before exercise can improve endurance performance. These results may have application for altering pre-exercise nutritional strategies in athletes and recreational runners.


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Item Type: University of Pittsburgh ETD
Status: Unpublished
CreatorsEmailPitt UsernameORCID
Prins, Philippjp35@pitt.eduPJP35
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairGoss, Fredricpjp35@pitt.eduPJP35
Committee MemberNagle, Elizabeth Fnagle@pitt.eduNAGLE
Committee MemberLovalekar, Mitamtl13@pitt.eduMTL13
Committee MemberBeals, Kimkcrawfor@pitt.eduKCRAWFOR
Committee MemberRobertson, Robertrrobert@pitt.eduRROBERT
Date: 19 May 2015
Date Type: Publication
Defense Date: 30 March 2015
Approval Date: 19 May 2015
Submission Date: 1 April 2015
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 205
Institution: University of Pittsburgh
Schools and Programs: School of Education > Health and Physical Activity
Degree: PhD - Doctor of Philosophy
Thesis Type: Doctoral Dissertation
Refereed: Yes
Uncontrolled Keywords: Energy Drinks Running 5-km Ratings of Perceived Exertion Affect
Date Deposited: 19 May 2015 20:03
Last Modified: 15 Nov 2016 14:26


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