What Are The Three Sources Of Energy Exercise

Each system uses different starting fuels each provides atp at different.

What are the three sources of energy exercise.

For example during heavy exercise the body s total energy expenditure may increase 25 times above expenditure at rest 2 the body uses carbohydrate fat and protein to provide necessary energy to sustain cellular activities both at rest and during exercise 3. Atp which stands for adenosine triphosphate is the sole source of energy for all human metabolism yet very little of this fuel is actually stored in the body. A motorbike engine uses the stored energy of petrol and converts it to heat and energy of motion kinetic energy. The body uses 3 different systems to supply cells with the necessary atp to fuel energy needs.

Although muscles and engines work in different ways they both convert chemical energy into energy of motion. Muscles use the stored chemical energy of food we eat and convert that to heat and energy of motion kinetic energy. The aerobic energy system is also known as the oxygen energy system and it uses both carbohydrates and fat in a slow energy burn. Atp pc anaerobic glycolysis and aerobic phosphorylation.

Most of the body s activities use a continuum of all three energy systems working together to ensure a constant supply of energy. The aerobic energy system is the most complex of the three using oxygen to create something called glycolysis and ultimately produce that all important atp. Exercise poses a major challenge to the various bioenergetic pathways in the working muscle 2. Muscle carbohydrate stores glycogen blood sugar blood fatty acids and intramuscular triacylglycerols.

Instead the body has three different systems of atp production.