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phosphocreatine |
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phosphocreatine [¦fäs·fō′krē·ə‚tēn] (biochemistry) C4H10N3O5P Creatine phosphate, a phosphoric acid derivative of creatine which contains an energy-rich phosphate bond; it is present in muscle and other tissues, and during the anaerobic phase of muscular contraction it hydrolyzes to creatine and phosphate and makes energy available. Abbreviated PC. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Basically, this system draws upon adenosine triphosphate (ATP) and phosphocreatine (PC)--which are both stored in the muscles--as the primary fuels. The primary energy source for sprinting distances up to 400 meters, then, is Phosphocreatine. This technique measures the concentration of phosphocreatine (PCr) and inorganic phosphate (Pi), from which pH of the exercising muscle can be calculated. |
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