So the phosphocreatine system contributes about 12% of the energy needed for an all-out 2:00 race -- a good reason to make sure it's not totally depleted by too many long sprints immediately ...

To understand your workout, you need to understand the three energy systems. The phosphagen, glycolytic, and oxidative systems control your energy output.

Three metabolic pathways generate the energy required to perform an exercise: the phosphagen pathway, the glycolytic pathway, and the oxidative pathway, together known as the energy systems.

Creatine acts at the cellular level, where it is stored as phosphocreatine and spurs production of adenosine triphosphate (ATP)—an energy source used by cells. Most of the creatine that we consume ...

The research team based their design on the phosphocreatine (PCr) – creatine kinase (CK) energy shuttle, a sophisticated biological system that transports energy from mitochondria to high-demand sites ...

Some research has provided evidence that an increase in the phosphocreatine energy buffer as a result of creatine administration may confer protective effects in neurodegenerative disease.

Phosphocreatine aids the formation of adenosine triphosphate (ATP), the key molecule your cells use for energy and all basic life functions (8). During exercise, ATP is broken down to produce energy.