Medical Definition of Exercise-induced asthma

  • Medical Author:
    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

Exercise-induced asthma: Asthma triggered by vigorous physical activity. It primarily affects children and young adults because of their high levels of physical activity, but it can occur at any age. Exercise-induced asthma is initiated by the fall in airway temperature during rapid breathing followed by rapid reheating with lowered ventilation. The more heat that is transferred, the cooler the airways become, and the more rapidly the airways rewarm, the more the bronchi are narrowed. Acute attacks can be minimized by warming up before strenuous activity. An inhalator may also be used before exertion. Also known as exercise-induced bronchospasm and thermally induced asthma.

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Reviewed on 12/27/2018

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