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Exercise-induced bronchoconstriction (EIB) occurs when the airways narrow as a result of exercise. This condition has been referred to as exercise-induced asthma (EIA); however, this term is no longer preferred. [1] While exercise does not cause asthma, it is frequently an asthma trigger. [1]
Asthma triggers are factors or stimuli that provoke the exacerbation of asthma symptoms or increase the degree of airflow disruption, which can lead to an asthma attack. [1] An asthma attack is characterized by an obstruction of the airway , hypersecretion of mucus and bronchoconstriction due to the contraction of smooth muscles around the ...
More generally termed exercise-induced asthma, the preferred and more accurate term exercise-induced bronchoconstriction better reflects underlying pathophysiology.It is also preferred due to the former term giving the false impression that asthma is caused by exercise.
Exercise can trigger bronchoconstriction both in people with or without asthma. [116] It occurs in most people with asthma and up to 20% of people without asthma. [116] Exercise-induced bronchoconstriction is common in professional athletes. The highest rates are among cyclists (up to 45%), swimmers, and cross-country skiers. [117]
Asthma is a common pulmonary condition defined by chronic inflammation of respiratory tubes, tightening of respiratory smooth muscle, and episodes of bronchoconstriction. [1] The Centers for Disease Control and Prevention estimate that 1 in 11 children and 1 in 12 adults have asthma in the United States of America. [ 1 ]
Wright suggests limiting your outdoor activity during times of the day when pollen counts tend to be high (typically dawn and dusk) and using a smartphone app to track levels. On top of that, a ...