Although your body uses extra sugar during exercise, it can easily be replaced with stored sugar from your liver. While the aerobic energy system can use proteins, it mostly uses carbohydrates and fat in a combination that depends on the intensity of the exercise. The carbohydrates used during exercise are stored as glycogen in the muscles, and around the liver. As the stores begin to run out, the proportion of energy from fat rises
Posted on: Tue, 13 May 2014 16:46:36 +0000