Aerobic fitness is essentially the interaction between the heart, lungs, and blood vessels that allows you to sustain exercise for prolonged periods of time. The more aerobic fitness you have, the healthier your heart, lungs, and blood vessels will be. They will also be much more efficient at rest, which means less stress and strain for the entire body.

To achieve aerobic fitness, you must participate in some form of aerobic exercise, which is also referred to as cardio, or cardiovascular, exercise.

How to gain aerobic fitness.

In aerobic exercise, you continually move large muscle groups, such as legs, arms, and buttocks. This action causes you to breathe more deeply and your heart to work harder to pump blood, thereby strengthening your heart and lungs.

Aerobic exercises include:

  • Walking
  • Jogging
  • Running
  • Bicycling

Before you get started.

Before starting an exercise program, check with your doctor about any possible medical problems. If you're new to exercise, consider making an appointment with a certified personal trainer to help you develop a safe, effective, and enjoyable exercise program.