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Effect Of Creatine on the Human Body


             form. Phosphocreatine is the most abundant among skeletal muscle tissue. It is estimated that a.
             154 pound male will have a total creatine pool of about 140 grams (90). It is also estimated that.
             the average male consumes creatine from within the body at a rate of 1.6% per day (90). .
             Therefor a human with a total creatine pool of 140 grams will lose on average about two grams.
             per day from everyday activity. Of course this loss has to be accounted for through your diet. .
             Dietary creatine is mostly found in meat, fish, and other animal products. The average daily diet.
             usually contains 1 gram of creatine, which is only half the amount that was used during the day.
             (90). The rest must be synthesized by the body and put back out into circulation. .
             Creatine is vital to muscles because it readily replenishes ATP (adenosine triphosphate).
             ATP is the fuel that is necessary for each and every muscle contraction. From getting out of bed.
             in the morning to sprinting after the bus, ATP is responsible for all of the muscle action that we.
             take for granted. All fuel sources, which include carbohydrates, fats, and protein, must first be.
             converted through a number of chemical reactions to ATP before it can be used for fuel. .
             ATP is a simple chemical consisting of one molecule of adenosine and three molecules of.
             phosphate. When ATP releases its energy to fuel muscle contractions, a phosphate is broken off.
             and a new molecule is formed called adenosine diphosphate or ADP. This reaction is then.
             reversed by the phosphocreatine in the muscle and is converted back into ATP (Gastelu 189). .
             Now it can be used again to fuel the continued muscle contractions. This process is known as the.
             "ATP cycle" (192).
             When the human body is at work, the demand for ATP is more than 100 times greater.
             than when the body is at rest (Phillips 49). This is obviously caused by the repeated muscle.
             contractions that take place throughout the body, which require a greater amount of ATP.


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