Answer: The word Aerobic means 'with oxygen'. The activities where oxygen from the blood is required to fuel the body. Aerobic activities include: walking, biking, jogging, swimming, aerobic classes and cross-country skiing. Aerobic exercise conditions the heart and lungs by increasing the oxygen available to the body and by enabling the heart to use oxygen more efficiently. It enhances respiratory and circulatory efficiency.
Next Question: What are Amino Acids?