The ATP-PC systems provide about one-half of the energy required for intense exercise lasting 10 minutes, whereas aerobic reactions provide the remainder.

Question

Quizplus · Accepted Answer

The ATP-PC system provides energy for the initial 5-10 seconds of intense exercise, after which glycolysis and aerobic metabolism become the primary sources of energy. For intense exercise lasting 10 minutes, the majority of energy would come from aerobic metabolism.

The ATP-PC Systems Provide About One-Half of the Energy Required