What Are The Three Sources Of Energy For Humans During Exercise

How do they work and what is their effect.

What are the three sources of energy for humans during exercise.

As potential fuel sources the carbohydrate fat and protein in the foods that you eat follow different metabolic paths in the body but they all ultimately yield water carbon dioxide and a chemical energy called adenosine triphosphate atp. The body uses carbohydrate fat and protein to provide necessary energy to sustain cellular activities both at rest and during exercise 3. Energy system one aerobic. 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.

Instead the body has three different systems of atp production. The regulation of fuel selection during exercise is under complex control and depends on several factors including diet as well as intensity and duration of exercise 3. Our ability to run bicycle ski swim and row hinges on the capacity of the body to extract energy from ingested food. Aerobic glycolysis has a slow rate of atp production and is predominantly utilized during longer duration lower intensity activities after the phosphagen and anaerobic systems have fatigued.

It is important to remember that all three of these systems contribute to the energy needs of the body during physical activity. 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. Atp pc anaerobic glycolysis and aerobic phosphorylation.