Question

the oxygen needed to recycle lactic acid in the liver and regenerate atp and creatine phosphate in skeletal muscle cells, as well as to restore blood and tissue oxygen concentrations to preexercise levels, is called the oxygen

Explanation:

This is a well - known physiological concept. After exercise, the extra oxygen required to restore the body to its pre - exercise state is called oxygen debt. It involves processes like lactic acid recycling and ATP/creatine phosphate regeneration.

Answer:

debt