Athletes use creatine hoping that it will increase muscle mass and strength, and allow them to sprint faster. Creatine may enhance the performance of high intensity, short duration exercise such as power-lifting or sprinting, but it appears to have no positive effects on endurance or low intensity sports. Therefore, there is a risk of contamination of creatine supplements that can result in unexpected adverse effects. People taking creatine supplements usually take 20 grams to 30 grams for the first five to seven days, followed by a maintenance dose of 2 grams per day for five to eight weeks, and then an off-cycle phase (no taking of creatine) for two to four weeks. Taking higher doses only increases the excretion of creatine in urine and can lead to an increased risk of adverse effects. read more
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