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Aerobic fitness means increasing how well the body uses oxygen, which depends on the condition of the heart, lungs, and muscles. Experts tend to describe aerobic activity in three ways: light, moderate, and vigorous.
When people do moderate-intensity activities, they notice a faster heartbeat. To get the benefits of moderate activity, a person can:
The goal of aerobic fitness is to increase the amount of oxygen that goes to the heart and muscles, which allows them to work longer. Any activities, including many kinds of daily activities, that raise the heart rate and keep it up for an extended period of time can improve aerobic fitness. If the activities are done regularly and long enough, they can help improve fitness.
Experts recommend that adults try to do moderate activity for at least 2½ hours a week. Or they can do vigorous activity for at least 1¼ hours a week. You can choose to do one or both types of activity. And it's fine to be active in shorter periods of time throughout the day and week that add up to the recommended goals. Children as young as preschool age benefit from being active. It's best for teens and children (starting at age 6) to do moderate to vigorous activity at least 1 hour every day.
Moderate activity is safe for most people, but it's always a good idea to talk to your doctor before starting an exercise program.
To learn more, visit Healthwise.org
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