Functional training programs can benefit anyone, regardless of if your goal is to build muscle, burn body fat, improve your endurance, or just become an overall healthier person! One of the advantages of functional circuit training is that it both burns calories and builds muscle. Burning calories is the basic mechanism of weight and fat loss. In fact, you need to use about 500 calories a day more than you eat or eat 500 calories less than you use to lose a pound of fat a wee