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Amisulpride A, Phillips S, Schwarcz HP: Evaluation of protein requirements for trained strength athletes. J Appl Physiol 1992, 73:1986–1995.PubMed Competing interests JDB and BMD are employees of USANA Health Sciences, Inc. USANA Health Sciences, Inc. had no role in the direction, data collection, analysis, interpretation, or writing of this review. USANA Health Sciences, Inc. has provided for the article processing charge. The authors have no other competing interests to declare. Authors’ contributions JDB designed the manuscript, collected and analyzed study data, wrote, and edited the manuscript. BMD provided manuscript direction and edited the manuscript. Both authors read and approved the final manuscript.”
“Background The supplementation of standard diets with creatine-based compounds in speed-and-strength sports has become very popular today. The creatine alone is an endogenous substance synthetized in internal organs, such as liver, pancreas and kidneys. Primary stores of free creatine (Cr) and its phosphorylated form (PCr) are skeletal muscles, cardiac muscle and smooth muscle tissues. Since the mechanism of phosphocreatine shuttle was described in 1981, the role of this compound in cellular metabolism has increased dramatically [1, 2]. In athletes competing in speed and strength sports, such as combat sports, particularly in judo, the demand for ATP is elevated during the physical exercise of interval character.