What substance does aerobic exercise take in transport and utilize?

Aerobic exercise primarily utilizes oxygen as a key substance for energy production. During aerobic activities, the body transports oxygen to the muscles through the bloodstream, where it is used to metabolize carbohydrates and fats. This process generates adenosine triphosphate (ATP), the energy currency of the cell, which powers prolonged physical activity. Additionally, aerobic exercise enhances the efficiency of the cardiovascular and respiratory systems in transporting oxygen.