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Multiple Effects of Caffeine on Simulated High-Intensity Team-Sport Performance

Multiple Effects of Caffeine on Simulated High-Intensity Team-Sport Performance Multiple Effects of Caffeine on Simulated High-Intensity Team-Sport Performance 1 1 2 1 GENE R. STUART , WILL G. HOPKINS , CHRISTIAN COOK , and SIMEON P. CAIRNS 1 2 Division of Sport and Recreation, Auckland University of Technology, Auckland, NEW ZEALAND; and Human Performance Group, HortResearch, Hamilton, NEW ZEALAND ABSTRACT STUART, G. R., W. G. HOPKINS, C. COOK, and S. P. CAIRNS. Multiple Effects of Caffeine on Simulated High-Intensity Team-Sport Performance. Med. Sci. Sports Exerc., Vol. 37, No. 11, pp. 1998–2005, 2005. Introduction: Caffeine enhances performance of single bouts of endurance exercise, but its effects on repeated bouts typical of those in high-intensity team sports are unclear. Purpose: To investigate effects of caffeine in a performance test simulating physical and skill demands of a rugby union game. Methods: The study was a double-blind, randomized, crossover design in which nine competitive male rugby players ingested either caffeine (6 mg·kg body mass) or placebo (dextrose) 70 min before performing a rugby test. Each test consisted of seven circuits in each of two 40-min halves with a 10-min half-time rest. Each circuit included stations for measurement of sprint time (two straight-line and three agility sprints), power generation in two consecutive drives, http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Medicine & Science in Sports & Exercise Wolters Kluwer Health

Multiple Effects of Caffeine on Simulated High-Intensity Team-Sport Performance

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ISSN
0195-9131
eISSN
1530-0315
DOI
10.1249/01.mss.0000177216.21847.8a
Publisher site
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Abstract

Multiple Effects of Caffeine on Simulated High-Intensity Team-Sport Performance 1 1 2 1 GENE R. STUART , WILL G. HOPKINS , CHRISTIAN COOK , and SIMEON P. CAIRNS 1 2 Division of Sport and Recreation, Auckland University of Technology, Auckland, NEW ZEALAND; and Human Performance Group, HortResearch, Hamilton, NEW ZEALAND ABSTRACT STUART, G. R., W. G. HOPKINS, C. COOK, and S. P. CAIRNS. Multiple Effects of Caffeine on Simulated High-Intensity Team-Sport Performance. Med. Sci. Sports Exerc., Vol. 37, No. 11, pp. 1998–2005, 2005. Introduction: Caffeine enhances performance of single bouts of endurance exercise, but its effects on repeated bouts typical of those in high-intensity team sports are unclear. Purpose: To investigate effects of caffeine in a performance test simulating physical and skill demands of a rugby union game. Methods: The study was a double-blind, randomized, crossover design in which nine competitive male rugby players ingested either caffeine (6 mg·kg body mass) or placebo (dextrose) 70 min before performing a rugby test. Each test consisted of seven circuits in each of two 40-min halves with a 10-min half-time rest. Each circuit included stations for measurement of sprint time (two straight-line and three agility sprints), power generation in two consecutive drives,

Journal

Medicine & Science in Sports & Exercise – Wolters Kluwer Health

Published: Nov 1, 2005

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