What is the primary limitation of the creatine phosphate system?

The primary limitation of the creatine phosphate system lies in its ability to sustain energy output for a very short duration, typically less than 10 seconds. This anaerobic energy system provides a rapid source of energy for intense physical activities, such as sprinting or heavy lifting, by using stored phosphocreatine in the muscles to regenerate ATP (adenosine triphosphate). However, since it relies on finite stores of phosphocreatine, the energy provided is quickly depleted during sustained, high-intensity efforts. This makes it ideal for explosive movements but inadequate for prolonged activities, as the body will need to switch to other energy systems, like anaerobic glycolysis or aerobic metabolism, for continued performance after this brief period.