Journal of the International Society of Sports Nutrition (Feb 2008)

The effects of creatine pyruvate and creatine citrate on performance during high intensity exercise

  • Purpura Martin,
  • Shushakov Vladimir,
  • Lautmann Karin,
  • Metzger Jan,
  • Jäger Ralf,
  • Geiss Kurt-Reiner,
  • Maassen Norbert

DOI
https://doi.org/10.1186/1550-2783-5-4
Journal volume & issue
Vol. 5, no. 1
p. 4

Abstract

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Abstract Background A double-blind, placebo-controlled, randomized study was performed to evaluate the effect of oral creatine pyruvate (Cr-Pyr) and creatine citrate (Cr-Cit) supplementation on exercise performance in healthy young athletes. Methods Performance during intermittent handgrip exercise of maximal intensity was evaluated before (pretest) and after (posttest) 28 days of Cr-Pyr (5 g/d, n = 16), Cr-Cit (5 g/d, n = 16) or placebo (pla, 5 g/d, n = 17) intake. Subjects performed ten 15-sec exercise intervals, each followed by 45 sec rest periods. Results Cr-Pyr (p Conclusion It is concluded that four weeks of Cr-Pyr and Cr-Cit intake significantly improves performance during intermittent handgrip exercise of maximal intensity and that Cr-Pyr might benefit endurance, due to enhanced activity of the aerobic metabolism.