Body for Life:Men's Health - The Secrets of Awesome Abs

Posted By: zpassenger

Not all weight-training systems burn fat, but the one you’ll use in this programburns fat by the pound. Here’s why: Since a 1990 study in The Journal of Applied Physiology, exercise scientists have known that doing hard, 10-repetition sets and following them with short rest periods produces dramatic increases in growth hormone. Growth hormone plays a huge role in muscle building. In fact, a recent study found that growth-hormone increases accounted for 50 percent of the muscle growth in trained weight lifters during a 20-week program.