Stamina building activities are sometimes also referred to as aerobic exercise. Here aerobic literally means “with oxygen”. It refers to all forms of sustained, moderate exercise including walking, cycling and jogging, not just aerobic step and aerobic dance classes.

We usually tend to think that all activities or exercise we do involves oxygen. However this is not the fact. The physical activities such as weight lifting and sprinting are actually the anaerobic exercises, literally meaning “without oxygen”. This is because it takes several minutes for the heart and lungs to circulate blood to the muscles along with oxygen. If the physical activity is very intense, then there is not much time available for the oxygen to be produced and the muscle have to perform without it. In other words they perform anaerobically. Instead they draw upon energy from the existing carbohydrate supplies in the muscles through a chemical transformation process. Muscles cannot work for very long this way. If you are able to sustain any specific exercise for let’s say a period of 20 minutes, it is evident from it that muscles are working aerobically. Similarly to aerobic exercise, regular anaerobic exercise increases the body’s ability to access and utilize energy.

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