What is aerobic metabolism?

Aerobic metabolism refers to the biochemical process through which the body converts carbohydrates and fatty acids into energy in the presence of oxygen. This process is essential for the efficient production of adenosine triphosphate (ATP), which is the primary energy currency in cells. During aerobic metabolism, glucose undergoes glycolysis to produce pyruvate, which then enters the mitochondria where it undergoes further oxidation through the Krebs cycle and electron transport chain, ultimately resulting in the production of a high yield of ATP.

The presence of oxygen allows for the complete oxidation of substrates, leading to greater energy release compared to anaerobic metabolism, which occurs without oxygen and results in less ATP production and the formation of lactic acid. Aerobic metabolism is crucial for prolonged, low-to-moderate intensity activities like jogging or cycling, as well as for overall endurance and cardiovascular health.