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Findings conclude sustained caffeine intake negates the benefits of creatine supplements

that oral creatine supplementation shortens muscle relaxation time in humans: relation time was reduced by five percent and was significantly shorter than after the placebo;

discovery that the intake of caffeine, combined with a daily creatine supplement, counteracted the beneficial effects of creatine intake on relaxation time and fatigue enhanced this inhibitory effect; and

the observation that caffeine reduces the functional capacity of sacroplasmic reticulum calcium ATPase.

Conclusion The researchers believe that the findings from this experiment offer indirect evidence that suggests that facilitation of muscle relaxation may be important to the ergogenic action of creatine supplementation as well as power production during sprint exercises.

However, for the athlete in training, the key finding is that sustained caffeine intake, over a three-day period, negates the benefits of creatine supplements.


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Contact: Donna Krupa
djkrupa1@aol.com
703-527-7357
American Physiological Society
14-Mar-2002


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