Creatine Phosphate Energy System

The energy system that uses atp and creatine phosphate fuel the body for long exercise sessions.

Creatine phosphate energy system. To rapidly replenish atp muscle cells break down another high energy compound called creatine phosphate cp. We are going to start by covering the energy system responsible for the provision of energy during short explosive bouts. The phosphagen system can supply the energy needs of working muscle at a high rate but only for 8 to 10 seconds. The system relies on the fuel carbohydrates to further its work at providing energy the use of this system is limited due to the fact that there is only a small amount of creatine phosphate in the muscle cell thus meaning that when it.

Pcr is broken down releasing a phosphate and energy which is then used to rebuild atp. Creatine phosphate energy system. Together the atp levels and creatine phosphate levels are called the phosphagen system. These two will work in different systems and at different times to quickly produce energy.

You start out with adenosine tri phosphate atp and when the energy system is put into action a chemical reaction occurs where a phosphate p splits away and energy is released. Increased size of muscle fibers. The cp system is generally used in short highly explosive training. Creatine phosphate is your body s simplest most immediate energy source and your body maintains using this system for a short period of time.

Increased activation and coordination of motor units. This is an energy system your body will put to use in certain types of training. You are then left with adenosine di phosphate adp. The atp store in the body is small and is sufficient to allow maximal effort for about 1 to 2 seconds but there are ways of providing more atp to replace that being used during metabolism.

As it suggests this system is concerned with the use of the available atp pool that we have along with pcr. True o false muscle strength improvements in the first few weeks of a program are due to. This is referred to as the creatine phosphate pcr system the atp pcr system or simply the phosphagen system. Atp and creatine phosphate also called phosphocreatine or pcr for short make up the atp pcr system.

Creatine phosphate stores are almost immediate but they will only last you around 10 15 seconds in total. The phosphagen system consists of the atp store and the phosphocreatine pc also called creatine phosphate store see upper section of fig. The main fuel for this system will be glycogen that we store in the muscles and the liver as well as creatine phosphate. This is called the atp cp or phosphagen energy system sometimes referred to as the.

Recall that atp is rebuilt by adding a phosphate to adp in a process called phosphorylation.