How understanding your body’s aerobic and anaerobic energy systems can help you to train smarter and run better ...

Glucose from carbohydrates and fats supply the energy for the aerobic energy system and can supply energy for long periods of time. Carbohydrate food sources include rice, bread, potatoes ...

Aerobic activities (lower intensity, longer duration) produce these effects most Energy system Increased production of energy from the aerobic energy system; increased tolerance to lactic acid ...