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International society of sports nutrition position stand: caffeine and performance

Erica R Goldstein1 email, Tim Ziegenfuss2 email, Doug Kalman3 email, Richard Kreider4 email, Bill Campbell5 email, Colin Wilborn6 email, Lem Taylor6 email, Darryn Willoughby7 email, Jeff Stout8 email, B Sue Graves1 email, Robert Wildman9 email, John L Ivy10 email, Marie Spano11 email, Abbie E Smith8 email and Jose Antonio12 email

Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, FL 33431, USA

The Center for Applied Health Sciences, Division of Sports Nutrition and Exercise Science, 3624 West Market Street, STE 104, Fairlawn, OH 44333, USA

MRA Clinical Research, 6280 Sunset Drive #600, Miami, FL 33143, USA

Department of Health and Kinesiology, Texas A & M University, College Station, TX 77843, USA

University of South Florida, School of Physical Education and Exercise Science, Tampa, FL 33620, USA

University of Mary Hardin-Baylor, Belton, TX 76513, USA

Department of Health, Human Performance, and Recreation, Baylor University, Box 97313, Waco, TX 76798, USA

Department of Health and Exercise Science, University of Oklahoma, Norman, OK 73019, USA

Department of Human Nutrition, College of Human Ecology, Kansas State University, Manhattan, KS 66506, USA

10  Department of Kinesiology and Health Education, the University of Texas, Austin, TX 78712, USA

11  International Society of Sports Nutrition, 600 Pembrook Drive, Woodland Park, CO 80863, USA

12  Nova Southeastern University, Fort Lauderdale-Davie, FL 33314, USA

author email corresponding author email

Journal of the International Society of Sports Nutrition 2010, 7:5doi:10.1186/1550-2783-7-5

Published: 27 January 2010

Abstract

Position Statement: The position of The Society regarding caffeine supplementation and sport performance is summarized by the following seven points: 1.) Caffeine is effective for enhancing sport performance in trained athletes when consumed in low-to-moderate dosages (~3-6 mg/kg) and overall does not result in further enhancement in performance when consumed in higher dosages (≥ 9 mg/kg). 2.) Caffeine exerts a greater ergogenic effect when consumed in an anhydrous state as compared to coffee. 3.) It has been shown that caffeine can enhance vigilance during bouts of extended exhaustive exercise, as well as periods of sustained sleep deprivation. 4.) Caffeine is ergogenic for sustained maximal endurance exercise, and has been shown to be highly effective for time-trial performance. 5.) Caffeine supplementation is beneficial for high-intensity exercise, including team sports such as soccer and rugby, both of which are categorized by intermittent activity within a period of prolonged duration. 6.) The literature is equivocal when considering the effects of caffeine supplementation on strength-power performance, and additional research in this area is warranted. 7.) The scientific literature does not support caffeine-induced diuresis during exercise, or any harmful change in fluid balance that would negatively affect performance.


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