Exercise-induced asthma

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Cold or dry air may trigger your asthma symptoms. If you do exercise in cold or dry air:

  • Breathe through your nose.
  • Wear a scarf or mask over your mouth.

Do not exercise when the air is dirty or polluted. Do not exercise near fields or lawns that have just been mowed. Warm up before you exercise, and cool down after you exercise.

  • To warm up, walk or do your exercise activity slowly before you speed up.
  • The longer you warm up, the better.
  • To cool down, walk or do your exercise activity slowly for several minutes.

Some kinds of exercise may trigger your asthma less than others.

  • Swimming is a good sport for people with EIA. The warm, moist air helps keep asthma symptoms away.
  • Football, baseball, and other sports with periods when you do not move fast are less likely to trigger your asthma symptoms.

Activities that keep you moving fast all the time are more likely to trigger asthma symptoms. Some of these are running, basketball, and soccer.

I Would Like to Learn About:

  • Use Your Asthma Drugs before Exercise

    Take your short-acting inhaled beta-agonists before you exercise. These are called quick-relief drugs.

    • Take them 10 to 15 minutes before exercise.
    • They can help for up to 4 hours.

    Long-acting inhaled beta-agonists may also help.

    • Use them at least 30 minutes before exercise.
    • They can help for up to 12 hours. Children can take this medicine before school, and it will help for the whole day.
    • But, using this medicine every day before exercise will make it less effective over time.

    Inhaled cromolyn can also be used before exercise. But, most times, it is not as effective as other medicines.


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National Asthma Education and Prevention Program Expert Panel Report 3: Guidelines for the Diagnosis and Management of Asthma. Rockville, MD. National Heart, Lung, and Blood Institute, US Dept of Health and Human Services; 2007. NIH publications 08-4051.

Szefler SJ. Advances in pediatric asthma in 2009: gaining control of childhood asthma. J Allergy Clin Immunol. 2010 Jan;125(1):69-78.

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Review Date: 5/16/2012  

Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.

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