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February 10, 2012
The Cleveland Clinic


Exercise-Induced Asthma

What Is Exercise-Induced Asthma?

Like it sounds, exercise-induced asthma is asthma that is triggered by vigorous or prolonged exercise or physical exertion. Most people with chronic asthma experience symptoms of asthma during exercise. However, there are many people without chronic asthma who develop symptoms only during exercise.

Why Does Exercise Induce Asthma?

During normal breathing, the air we take in is first warmed and moistened by the nasal passages. Because people tend to breathe through their mouths when they exercise, they are inhaling colder and drier air.

In exercise-induced asthma, the muscle bands around the airways are sensitive to these changes in temperature and humidity and react by contracting, which narrows the airway. This results in symptoms of exercised-induced asthma, which include:

The symptoms of exercise-induced asthma generally begin within 5-20 minutes after the start of exercise, or 5-10 minutes after brief exercise has stopped. If you are experiencing any of these symptoms with exercise, inform your doctor.

If I Have Asthma, Should I Avoid Exercise?

No. You shouldn't avoid physical activity because of exercise-induced asthma. There are steps you can take for prevention of asthma symptoms that will allow you to maintain normal physical activity. In fact, many athletes -- even Olympic athletes -- compete with asthma. For example, in the 1996 Olympic Games, 1 out of every 6 athletes had asthma. These Olympians competed in a variety of sports such as track and field, mountain biking, kayaking, cycling, and rowing. The following is an abbreviated list of athletes who have competed despite their asthma.

  • Jackie Joyner-Kersee - track and field


  • Jerome Bettis - NFL running back


  • Amy Van Dyken - swimming


  • Dennis Rodman - NBA basketball


  • Ray Bourque - NHL hockey





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Exercise-Induced Asthma

What is chronic cough?

Chronic cough is a cough that persists. Chronic cough is not a disease in itself; rather it is a symptom of an underlying condition. Chronic cough is a common problem and the reason for many doctor visits.

What are causes of chronic cough?

Some common causes of chronic cough include asthma, allergic rhinitis, sinus problems (for example sinus infection), and esophageal reflux of stomach contents. In rare occasions, chronic cough may be the result of aspiration of foreign objects into the lungs (usually in children). It is very important to see a doctor who may order a chest X-ray if a chronic cough is present. The following are common causes of chronic coughing.

  • Cigarette smoking actually is the most common cause of chronic cough.
  • Asthma is a disease of airways, resulting in difficulty breathing or wheezing often characterized by abnormal breathing...

Read the Chronic Cough article »




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