Creatine

1359 Words3 Pages

Creatine

Having finally resolved to work out at the gym, you sweat and toil for weeks on end only to look in the mirror and see little to show for it. It's the paradox of the New Year's resolution exerciser. Seeing physical results can help exercisers stay true to their fitness programs, yet for many it takes months to achieve noticeable muscle changes. Creatine Monohydrate has become the most popular supplement in the world among individuals interested in body-building and fitness. As you probably know creatine (usually in the form of creatine monohydrate) is a supplement taken to enhance anaerobic performance. Creatine Monohydrate is a white, odorless crystalline powder, clear and colorless in solution. With its popularity, you may find creatine at any health or sport product retailer. It sells for roughly $35 a bottle, and is distributed by many manufacturers.

Creatine serves as an energy reserve in muscle cells. Muscular contraction is powered by the breakdown of ATP (adenosine triphosphate) to ADP (adenosinediphosphate). When all the ATP is broken down, creatine phosphate in the muscle donates a phosphate group to ADP, and further energy reactions can occur. Creatine monohydrate is a precursor to creatine phosphate. By supplementing with CM, CP levels in muscle apparently are maximized, and more muscular work can occur, since there are greater energy reserves to use.

Approximately 95% of the body's creatine supply is found in the skeletal muscles. The remaining 5% are scattered throughout the rest of the body, with the highest concentrations in the heart, brain and testes. A skeletal muscle itself does not produce creatine, but utilizes the creatine originating in the liver and kidneys.

The human body gets most of the creatine it needs from food or dietary supplements. Creatine is easily absorbed from the intestinal tract into the bloodstream. Rich dietary sources of creatine include red muscle meats (beef) as well as fish. Creatine, however, is sensitive to heat and cooking, and the full amounts available in these food sources may be reduced during normal preparation. When dietary consumption is inadequate to meet the body's needs, a limited supply can be synthesized from the amino acids arginine, glycine and methionine. This creatine production occurs in the liver, pancreas and kidneys.

The bottom line is that your ability to regenerate ATP depends on your supply of creatine.

More about Creatine

Open Document