The Effects Of Creatine


Since 1990 more people in America are exercising than ever before. An even stronger trend in the nineties is resistance training (http://members.xoom.com/duranman/index.html). Resistance training has shown numerous positive health effects. These include weight management, minimizing muscle loss, reducing risk of injury and osteoporosis, and increasing athletic performance (McClary and Ray 51-52). Virtually all competitive athletes use resistance training in some form or another because increased muscle strength, endurance, and flexibility give them an edge in their sport. A far larger number of people exercise just to look good and feel healthy. Numerous studies have shown that ...

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was most limited to vitamins, minerals, and the ever popular “weight gainer”, which consisted mostly of sugar and protein. Similarly, people who wanted to loose weight looked to magical pills composed of tropical plants, strange chemicals, or chromium picolinate. Though there may be benefits in taking some of these supplements, none gave the user the results they were really looking for. In 1993, a seemingly “magical powder” was released that claimed to add strength and power, build lean muscle, boost endurance, and reduce bodyfat. Though most people were skeptical at first, numerous studies and millions of customers agree that creatine monohydrate does just that. This paper is intended to review the recent evidence on creatine: how it works, the effectiveness of it’s use, and its safety concerns.
First I shall examine why creatine is important in muscle energetics and how the supplement works. Creatine phosphate is found in our bodies and 95% of it is located in muscle ...

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ADP into ATP (Martini 307). The first is aerobic metabolism, which provides about 95 percent of the ATP demands of the resting cell. In this process, various substrates in the presence of oxygen are collected into the mitochondria where they are part of an enzymatic pathway called the TCA cycle. This process is highly efficient, resulting in a net gain of 17 ATP for every fatty acid or glucose molecule that enters the cycle. (Martini 307). Resting skeletal muscle fibers rely on the aerobic metabolism of fatty acids, while contracting tissues use pyruvic acid provided by the enzymatic pathway of glycolysis (Passwater 18). Glycolysis provides most of the energy for longer duration ...

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PAPER DETAILS
Added: 11/5/2005 09:17:36 PM
Category: Health & Medicine
Type: Free Paper
Words: 3611
Pages: 14

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