Explore Physical Activity and Your Heart
In general, the benefits of regular physical activity far outweigh risks to the heart and lungs.
Rarely, heart problems occur as a result of physical activity. Examples of these problems include arrhythmias (ah-RITH-me-ahs), sudden cardiac arrest, and heart attack. These events generally happen to people who already have heart conditions.
The risk of heart problems due to physical activity is higher for youth and young adults who have congenital (kon-JEN-ih-tal) heart problems. The term “congenital” means the heart problem has been present since birth.
Congenital heart problems include hypertrophic cardiomyopathy (KAR-de-o-mi-OP-ah-thee), congenital heart defects, and myocarditis (MI-o-KAR-di-tis). People who have these conditions should ask their doctors what types of physical activity are safe for them.
For middle-aged and older adults, the risk of heart problems due to physical activity is related to coronary heart disease (CHD). People who have CHD are more likely to have a heart attack when they're exercising vigorously than when they're not.
The risk of heart problems due to physical activity is related to your fitness level and the intensity of the activity you're doing. For example, someone who isn't physically fit is at higher risk for a heart attack during vigorous activity than a person who is physically fit.
If you have a heart problem or chronic (ongoing) disease—such as heart disease, diabetes, or high blood pressure—ask your doctor what types of physical activity are safe for you. You also should talk with your doctor about safe physical activities if you have symptoms such as chest pain or dizziness.
Discuss ways that you can slowly and safely build physical activity into your daily routine. (For more information, go to "Getting Started and Staying Active.")
Clinical trials are research studies that explore whether a medical strategy, treatment, or device is safe and effective for humans. To find clinical trials that are currently underway for Physical Activity and Your Heart, visit www.clinicaltrials.gov.
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