• Corpus ID: 23901517

Does oral creatine supplementation improve strength? A meta-analysis.

@article{Dempsey2002DoesOC,
  title={Does oral creatine supplementation improve strength? A meta-analysis.},
  author={Rania L. Dempsey and Michael F Mazzone and Linda N. Meurer},
  journal={The Journal of family practice},
  year={2002},
  volume={51 11},
  pages={
          945-51
        }
}
OBJECTIVES Oral creatine is the most widely used nutritional supplement among athletes. Our purpose was to investigate whether creatine supplementation increases maximal strength and power in healthy adults. STUDY DESIGN Meta-analysis of existing literature. DATA SOURCES We searched MEDLINE (1966-2000) and the Cochrane Controlled Trials Register (through June 2001) to locate relevant articles. We reviewed conference proceedings and bibliographies of identified studies. An expert in the… 
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References

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Oral Creatine Supplementation and Athletic Performance: A Critical Review
  • M. Juhn, M. Tarnopolsky
  • Medicine
    Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine
  • 1998
TLDR
In laboratory settings, creatine supplementation is ergogenic in repeated 6–30-second bouts of maximal stationary cycling sprints and suggests that creatine improves strength, possibly by increasing myofibrillar protein synthesis; however, more study is needed to prove this.
Acute creatine supplementation in older men.
TLDR
The data suggest that acute oral Cr supplementation does not increase isometric strength and only produces small increases in isokinetic performance and body mass in men over the age of 60.
Effects of 30 days of creatine ingestion in older men
TLDR
The data suggest that 30 days of Cr-supplementation may have a beneficial effect on reducing muscle fatigue in men over the age of 60 years, but it does not affect body composition or strength.
Creatine supplementation and health variables: a retrospective study.
TLDR
The data suggest that long-term creatine supplementation does not result in adverse health effects and only two differences for creatinine and total protein were noted.
Effects of oral creatine supplementation on muscular strength and body composition.
TLDR
Creatine supplementation during arm flexor strength training lead to greater increases in arm Flexor muscular strength, upper arm muscle area, and fat-free mass than strength training alone.
Long-Term Effects of Creatine Monohydrate on Strength and Power
TLDR
The results indicate that 10 weeks of creatine monohydrate supplementation while participating in a resistance training program significantly increases strength and power indices compared with placebo supplementation, and indicates that lower doses of Creatine monohydrate may be ingested, without a short-term, large-dose loading phase, for an extended period to achieve significant performance enhancement.
Effect of oral creatine supplementation on isokinetic torque production.
TLDR
Based on within and between group comparisons, the authors were unable to detect an ergogenic effect of oral creatine supplementation on the decline in peak torque during isokinetic exercise at 180 degrees x s(-1).
Potential Side Effects of Oral Creatine Supplementation: A Critical Review
  • M. Juhn, M. Tarnopolsky
  • Medicine
    Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine
  • 1998
TLDR
Creatine supplementation results in weight gain due to water retention, which may impede performance in mass-dependent activities such as running and swimming, and future studies should include large randomized controlled trials evaluating the short and long term effects of oral creatine supplementation on the renal and hepatic systems, as well as the many other organ systems in which creatine plays a metabolic role.
Effect of Oral Creatine Supplementation on Near‐Maximal Strength and Repeated Sets of High‐Intensity Bench Press Exercise
TLDR
It appears that 26 days of Cr supplementation significantly improves muscular strength and repeated near-maximal BP performance, and induces changes in body composition.
Effects of Varying Dosages of Oral Creatine Relative to Fat Free Body Mass on Strength and Body Composition
This study compared the effects of different dosages of creatine relative to fat free mass on strength, % body fat, body mass (BM), fat free mass (FFM), 40-yd dash time, and vertical jump (VJ)
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