In simple terms, aerobic capacity is a dimension of how physcially fit you are. You may have heard terms such as cardiovascular fitness or aerobic fitness or cardiorespiratory fitness. Generally speaking, they all mean essentially aerobic capacity.
Aerobic capacity is probably the most important area of any fitness program. Research shows that acceptable levels in this area are associated with a reduced risk of high blood pressure, coronary heart disease, obesity, diabetes, some forms of cancer and other health problems in adults.
Learning how to assess your aerobic capacity now and in the future will help you througout your life to lead a long and, more importantly, a healthy life.