Which aerobic energy system can sustain activity for more than 3 minutes and produces 129 ATP?

The aerobic energy system that can sustain activity for more than 3 minutes and produces a significant amount of ATP is fatty acid oxidation. This process occurs primarily in aerobic conditions and utilizes fatty acids as a primary fuel source. It is highly efficient, providing a large yield of adenosine triphosphate (ATP), which is essential for prolonged physical activity.

During exercise that lasts longer than a few minutes, the body gradually shifts from using short-term energy sources (like carbohydrates) to utilizing fats, particularly during lower-intensity, longer-duration activities. Fatty acid oxidation can provide an endless supply of energy as long as there are available fat stores, which is why it is capable of sustaining physical activities that extend beyond three minutes.

The other energy systems mentioned do not produce as much ATP or are not as suitable for sustaining extended activities. For example, anaerobic threshold refers to the point at which lactate starts to accumulate in the blood, primarily during high-intensity efforts where the body relies more on anaerobic energy pathways. Aerobic glycolysis, while it does produce ATP, typically does not yield as much as fatty acid oxidation for long-duration exercise. Type 1 refers to muscle fiber type, which is more associated with endurance and efficient oxygen