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Related Experiment Videos

Is running performance enhanced with creatine serum ingestion?

Todd A Astorino1, Andrew C Marrocco, Sara M Gross

  • 1Department of Kinesiology, California State University, San Marcos, California 92096, USA. astorino@csusm.edu

Journal of Strength and Conditioning Research
|November 17, 2005
PubMed
Summary

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Runners Advantage creatine serum did not significantly improve 5,000-m run times or VO2max in runners. While some measures like perceived exertion decreased, the overall ergogenic claims are not supported by this study.

Area of Science:

  • Sports Science
  • Exercise Physiology
  • Nutritional Supplementation

Background:

  • Creatine supplementation is popular for enhancing athletic performance.
  • Runners Advantage (RA) creatine serum is marketed to improve running capacity.
  • Scientific validation of RA's ergogenic effects is needed.

Purpose of the Study:

  • To investigate the efficacy of Runners Advantage (RA) creatine serum on running performance.
  • To assess the impact of RA on physiological markers during exercise.
  • To determine if RA provides a significant ergogenic benefit to cross-country runners.

Main Methods:

  • Cross-country runners underwent baseline testing including a 5,000-m run and VO2max assessment.
  • Subjects ingested either RA (2.5g creatine) or a placebo.

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  • Physiological data (heart rate, RPE, VO2max, Vco2max) and performance metrics (run time) were recorded.

    • Main Results:

    • RA supplementation showed a statistically significant increase in VO2max compared to baseline, but the magnitude was within the test's variability.
    • Maximal heart rate was unaffected, but Vco2max and exercise duration increased with RA.
    • 5,000-m run time remained unchanged, and rating of perceived exertion (RPE) was lower with RA compared to baseline.

    Conclusions:

    • The current dose and form of Runners Advantage creatine serum do not provide significant ergogenic benefits for running performance.
    • Observed improvements in VO2max and exercise duration with RA were not substantial enough to support marketing claims.
    • Further research may be needed to explore optimal creatine delivery methods or dosages for runners.