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Creatine is a naturally occurring amino acid derivative that is obtained by endogenous synthesis and dietary intake. Creatine phosphate has a high phosphoryl group transfer potential and serves as an ATP buffer during muscle contraction. Creatine supplementation increases muscle strength in healthy persons.
The aim of our review was to evaluate the efficacy and safety of creatine supplementation in muscle diseases.
We evaluated randomised controlled trials of creatine supplementation in patients with hereditary muscle diseases. The primary outcome measure was the change in muscle strength determined by quantitative muscle testing. Secondary outcomes were the change in muscle strength measured by manual muscle testing, changes in energy parameters …
Competing interests: None.
This paper is based on the Cochrane review: Kley RA, Vorgerd M, Tarnopolsky MA. Creatine for treating muscle disorders. Cochrane Database Syst Rev 2007;1:CD004760. Cochrane Reviews are regularly updated as new evidence emerges and in response to feedback, and The Cochrane Library should be consulted for the most recent version of the review. Please see the full Cochrane review for the statement on conflicts of interest in this review.