exercise-induced asthma


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exercise-induced bronchospasm (EIB),

bronchospasm precipitated by physical exertion.

exercise-induced asthma

[-indyo̅o̅st′]
a form of asthma that produces symptoms after strenuous exercise. The condition usually occurs in persons who already have asthma, hay fever, or related hypersensitivity reactions. The effect may be acute but is reversible.

exercise-induced asthma

A condition in which intense physical exertion results in acute airway narrowing in individuals with airway hyperreactivity.
 
Clinical findings
Cough, wheezing, dyspnoea, cough, chest tightness, hyperinflation, airflow limitation and hypoxia.
 
Pathogenesis
EIA is closely linked to thermal provocation, which occurs when large volumes of cold air are “conditioned” (heated and humidified), a scenario most common in winter. The limit of airflow is most intense with running, less so with jogging and least with walking; the obstruction is greatest with cold, dry air, and least with warm, humid air.

exercise-induced asthma

A condition in which intense physical exertion results in acute airway narrowing in persons with airway hyperreactivity Clinical Cough, wheezing, dyspnea, cough, chest tightness, hyperinflation, airflow limitation, hypoxia Treatment Cromolyn and β2-agonist

asthma

paroxysmal dyspnoea characterized by wheezing and difficulty in expiration because of constriction of the airways due to spasm of the bronchial muscle (bronchospasm). Caused by the response of the immune system to a variety of stimuli. Inhaled or oral corticosteroids damp down the acute immune reaction, while inhaled β2-receptor agonists relieve the bronchial spasm. exercise-induced asthma: a number of triggers are now known to produce bronchospasm and reduce performance in sport and exercise. These include intense exercise (especially combined with low fitness), respiratory tract infection, cold environmental temperature, allergens (such as pollen in hay fever), air pollution (especially cigarette smoke), certain drugs (including β-blockers) and simply exercise per se . Different sporting activities vary in likelihood of causing bronchospasm, e.g. it is least likely in the warm humid air of a swimming pool. See also pulmonary function tests, salbutamol.

exercise-induced asthma,

n a breathing disorder characterized by fits of heavy or irregular breathing, wheezing, coughing, and gasping brought on by physical exertion.
References in periodicals archive ?
Symptoms associated with exercise-induced asthma Cough Dyspnea Wheezing Fatigue Chest pain Nausea Headache Table 2.
The researchers don't know why the drug loses its lasting effectiveness against exercise-induced asthma attacks, says study coauthor E.
Fortunately, there are effective medications that prevent most exercise-induced asthma.
Exercise-induced asthma is the narrowing of the airways during physical activity.
Auvergne said the new study was not focused on testing athletes' response to pollution levels in particular but rather on "enhancing understanding about exercise-induced asthma in general".
For the first time anywhere, Indiana University exercise physiologist Timothy Mickleborough and his research team demonstrated that modifying salt intake for two weeks alters airway inflammation and the flow of oxygen into the bloodstream in people with exercise-induced asthma (EIA).
Exercise can trigger an asthma attack; treatment prior to exercising can prevent exercise-induced asthma.
Jacobson, a veteran of 40 years of running, has additional advise for people who have exercise-induced asthma.
He was diagnosed with exercise-induced asthma 7 years ago and now has chest tightness after 20 minutes of exercise.
Many athletes with exercise-induced asthma have excelled--even winning Olympic gold medals
Effects of dry and humid climates on exercise-induced asthma in children and preadolescents.
At most, some who have exercise-induced asthma may have to use the medicine before they exercise.

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