Creatine supplementation in young soccer players

Int J Sport Nutr Exerc Metab. 2004 Feb;14(1):95-103. doi: 10.1123/ijsnem.14.1.95.

Abstract

The purpose of this study was to examine the effects of acute creatine-monohydrate supplementation on soccer-specific performance in young soccer players. Twenty young male soccer players (16.6 +/- 1.9 years) participated in the study and were matched and allocated to 2 randomly assigned trials: ingesting creatine-monohydrate supplement (3 x 10-g doses) or placebo for 7 days. Before and after the supplementation protocol, each subject underwent a series of soccer-specific skill tests: dribble test, sprint-power test, endurance test, and vertical jump test. Specific dribble test times improved significantly in the creatine group (13.0 +/- 1.5 vs. 10.2 +/- 1.8 s; p < .05) after supplementation protocol. Sprint-power test times were significantly improved after creatine-monohydrate supplementation (2.7 +/- 0.4 vs. 2.2 +/- 0.5 s; p < .05) as well as vertical jump height (49.2 +/- 5.9 vs. 55.1 +/- 6.3 cm; p < .05) in creatine trial. Furthermore, dribble and power test times, along with vertical jump height, were superior in creatine versus placebo trial (p < .05) at post-supplementation performance. There were no changes in specific endurance test results within or between trials (p > .05). There were no between-trial differences in the placebo trial (p > .05). The main finding of the present study indicates that supplementation with creatine in young soccer players improved soccer-specific skill performance compared with ingestion of placebo.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial

MeSH terms

  • Adolescent
  • Creatine / administration & dosage*
  • Dietary Supplements
  • Double-Blind Method
  • Exercise Test
  • Humans
  • Male
  • Motor Skills / drug effects*
  • Motor Skills / physiology
  • Muscle, Skeletal / drug effects
  • Muscle, Skeletal / metabolism*
  • Physical Endurance / drug effects
  • Physical Endurance / physiology
  • Soccer / physiology*

Substances

  • Creatine