Cardiovascular Fitness

Anaerobic means in the absence of oxygen. The exercise that you do is anaerobic if your body's requirement for oxygen exceeds its supply.

Aerobic means in the presence of oxygen. If you are doing aerobic exercise your working muscles will have an adequate supply of oxygen so that you can sustain your exercise over a relatively long period of time.

Cardiovascular fitness is related to many health benefits and there are many ways of improving and maintaining your cardiovascular health.