Cardio and aerobic workouts are interchangeable terms referring to exercise formats targeting the cardiovascular system--the heart and circulatory system. Cardio workouts can be done alone or in a group fitness class. Cardio or aerobic workouts can be performed with or without props, and can be done inside or outdoors.
History of Aerobics
Aerobics is a term coined by Dr. Kenneth Cooper in his 1968 worldwide best seller, "Aerobics." As defined by Cooper, aerobics is a "method of physical exercise for producing beneficial changes in the respiratory and circulatory systems by activities which require meeting a modest increase in oxygen intake and so can be maintained."
Function of Aerobic Activity
Aerobic activity makes you breathe deeper and your heart beat faster, thereby enriching the oxygen in the blood and improving its flow throughout the organs and muscles of the body. Capillaries expand to deliver more oxygen and carry away carbon dioxide and lactic acid. Sustained long enough, aerobic activity can cause the release of those feel-good endorphins and provide you with what experienced athletes sometimes refer to as the "runner's high" or being in the "zone."
Types of Workouts
Cardio kickboxing, step aerobics and boot camps are among the most popular forms of group cardio and aerobic workouts. Activities that increase respiration and heart rate, often referred to as rate of exertion, are aerobic workouts that target the cardiovascular system. Jumping rope, jogging and bicycling are additional workouts that can be done solo or with a group.
Benefits
The American Heart Association says physical activity can reduce health risks. Aerobic activity, when done consistently, increases HDL levels, reduces high blood pressure, helps to control weight and increases overall fitness. Additional benefits include increased stamina, activation of the immune system--making you less susceptible to the common cold or flu--relief from depression, ability to maintain an independent lifestyle as you age and the possibility of a longer life span, according to the Mayo Clinic.
Considerations
The 2008 Physical Activity Guidelines for Americans recommends aerobic activity for children, people with disabilities, women who are pregnant and aging adults with chronic conditions as well as the general population. Most health benefits occur with a minimum of 150 minutes of moderate-intensity exercise each week, such as brisk walking for at least 10 minutes at a time. It is recommended to check with your physician before engaging in vigorous physical activity.
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