Cardiovascular, or aerobic, fitness is the ability to sustain moderate to high intensity activity over an extended period of time. Activities in which the large muscles of the body are in constant or almost constant motion are considered aerobic. Generally your heart rate and breathing increase for a sustained period of time.
In addition to being good for burring calories, aerobic activity is particularly good for your heart. The heart is a muscle; just like any other muscle, it grows stronger with frequent use. A well conditioned heart is able to pump more blood and oxygen to the body and maintain a higher rate for longer periods of time. That is why aerobic activities are also known as “Heart Healthy” exercise.
Examples of aerobic activities include running, walking, swimming, biking, and dance.
