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ATP

Adenosine triphosphate (ATP) is a complex chemical compound that is formed with the energy released from food and stored in all cells, particularly muscles.Cells can perform work only from the energy released by the breakdown of ATP and it is this breakdown that produces energy and adenosine diphosphate (ADP).

CP

Creatine phosphate (CP) is a chemical compound stored in muscle. When it beaks down, CP aids in the manufacture of ATP. The combination of ADP and CP produces ATP.

LA

Lactic acid (LA) is a fatiguing metabolite of the lactic acid system. It results from the incomplete breakdown of glucose. Although excessive lactate production is part of the extreme fatigue process, the protons that are simultaneously produced further restrict performance.

O2

The energy pathway of O2 is the source for aerobic paddling when ATP is manufactured from food sources, mainly sugar and fat. This system produces ATP copiously and acts as the primary energy source during endurance activities.