HUMAN NUTRITION

Detailed explanation-1: -The phosphagen system (also called the CrP-ATP system) is the quickest way to resynthesize ATP. Creatine phosphate (CrP), which is stored in skeletal muscles, donates a phosphate to ADP to produce ATP.

Detailed explanation-2: -The phosphagen energy system utilizes creatine phosphate (CP) stored in muscle cells to very quickly produce ATP. This immediate energy system is also called the ATP-CP system.

Detailed explanation-3: -In addition, it is well understood that a period of 3–5 minutes is required for the complete recovery of the adenosine triphosphate-phosphocreatine (ATP-PC) energy system (5, 9). This system is critical in fueling high-intensity effort for extremely short periods.