Aerobic exercise consumption

Fuels for the body are limited to carbohydrates, fats, and proteins. In the American diet, these fuels are consumed in a ratio of approximately 46 42 12 with the recommended ratio being closer to 53 35 12 (.5). Thus in a nongrowing adult, these ratios provide estimates of the fuel use for daily activities. The primary fuels for exercise are carbohydrates and fats. Chapter 3 examines utilization of specific fuels during aerobic exercise. As the amount of daily exercise increases, there is an increased energy expenditure and hence increased need for energy nutrients usually reflected in increased food consumption, decreased body fat, or both (see Chapter 9). 

The rate of energy consumption of an aerobic tissue is roughly proportional to its rate of oxygen consumption. What is the rate of energy consumption of resting muscle compared with exercising muscle ... 

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