Which energy system is most active during short bursts of high-intensity activity?

Question

Quizplus · Accepted Answer

The PCr-ATP energy system is most active during short bursts of high-intensity activity, such as weight lifting or sprinting. This system provides immediate energy through the breakdown of stored creatine phosphate and ATP in the muscles. The other energy systems, including the lactic acid and aerobic energy systems, do not provide energy as quickly or efficiently during high-intensity activity.

Which Energy System Is Most Active During Short Bursts of High-Intensity