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Exercise-induced Bronchospasm

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OVERVIEW

What is exercise-induced bronchospasm?

Exercise-induced bronchospasm (also called EIB) happens when the airways in your lungs shrink (get smaller) while you are exercising. This makes it difficult to breathe. If you have EIB, it can be hard for you to exercise for more than 30 minutes at a time.

SYMPTOMS

What are the symptoms of EIB?

Symptoms of EIB typically start after 5 to 20 minutes of nonstop exercise, and may include wheezing (breathing that makes a hoarse, squeaky, whistling or musical sound), difficulty breathing, chest pain, coughing, and chest tightness.

CAUSES & RISK FACTORS

What causes EIB?

Breathing in air that is cooler and drier than the air in your lungs during exercise may cause EIB. If you have EIB and chronic asthma, your symptoms may get worse during spring and fall, when people tend to have trouble with allergies.

DIAGNOSIS & TESTS

How can my healthcare provider tell that I have EIB?

Your healthcare provider will ask you questions about your symptoms, do a physical exam and perform breathing tests. During a breathing test, your healthcare provider will have you breathe into a spirometer or a peak flow meter. These devices measure how much air you are able to blow out of your lungs. If your healthcare provider thinks you might have EIB, they will help you decide on the right treatment for your symptoms.

TREATMENT

How is EIB treated?

Medicines to treat EIB include the following:

  • A short-acting bronchodilator: This medicine is usually taken 15 minutes before exercise and lasts 4 to 6 hours.
  • A mast cell stabilizer: This medicine is usually taken 15 minutes to 1 hour before exercise and lasts for 4 hours.
  • A longer acting bronchodilator: This medicine is usually taken 30 minutes before exercise and lasts up to 12 hours.
  • An anti-leukotriene: This medicine lasts up to 24 hours. It is taken every day and helps keep your airways from shrinking.

You and your healthcare provider will talk about which medicine is right for you. They will tell you how to take your medicine. It is important to follow your healthcare provider’s instructions carefully to make sure your medicine is effective.

A warm-up and cool-down period of at least 15 minutes before and after exercise may help lessen the symptoms of EIB. Avoid exercising in extremely cold temperatures or when you have a respiratory infection, such as a cold or the flu. If you have allergies, avoid exercising when pollen levels are high. Also, if you smoke, stop.

QUESTIONS TO ASK YOUR HEALTHCARE PROVIDER

  • I have trouble breathing when I exercise. Is it asthma?
  • How does exercise-induced bronchospasm differ from asthma?
  • Is it safe for me to exercise? What kind of exercise can I do?
  • What other lifestyle changes can I make to help relieve my symptoms?
  • Will any over-the-counter or prescription medicines help relieve my symptoms?

FOR MORE INFORMATION

Asthma Canada
http://www.asthma.ca

Sources

Recognition and Management of Exercise-Induced Bronchospasm by T Sinha, MD; AK David, MD (02/15/03, http://www.aafp.org/afp/20030215/769.html )

Written by familydoctor.org editorial staff.

Revised/Updated: 03-01-2014

Created: 04-01-2003

This handout provides a general overview on this topic and may not apply to everyone. To find out if this handout applies to you and to get more information on this subject, contact your family healthcare provider.

Copyright (c) by the American Academy of Family Physicians

Permission is granted to print and photocopy this material for non-profit educational uses.

Written permission is required for all other uses, including electronic uses.

Nova Scotia Telecare, Reviewed by Clinical Services Working Group, August 2019

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