Anaerobic means "requiring no oxygen." In exercise physiology, the term refers to activities that require a high energy expenditure but last for a shorter duration than aerobic exercises. Quick, explosive running sprints qualify as anaerobic exercise, whereas longer, steadily paced jogs are aerobic.
The preferred fuel for anaerobic metabolism is creatine phosphate, produced in the sarcoplasm of the cells, or carbohydrates used in the lactic acid system. Its advantage is that it produces a very high intensity, almost 95 percent of your maximum output. Its disadvantage is that you can become fatigued in less than 90 seconds and go only go for a short distance.
Aerobic exercise uses carbohydrates, fats or protein, all used in the presence of oxygen within the mitochondria of the cells. The power it generates is moderate, but it takes a very long time to fatigue the system.
Examples of Aerobic Exercise:
Examples of Anaerobic Exercise: