Category: Pulmonary

Exercise-Induced Bronchoconstriction in Athletes: Nonpharmacologic Therapy

Many athletes find that a period of precompetition warm-up reduces the symptoms of EIB that occur during their competitive activity. Athletes often draw this conclusion without any guidance from healthcare specialists. Symptoms of EIB usually occur after a few minutes of exercise, and some athletes find that warming up before exercise acts as prophylaxis against…

Exercise-Induced Bronchoconstriction in Athletes: Pharmacologic Therapy

Pharmacologic therapy (Table 3) for EIB has been studied extensively; however, most studies have included asthmatic athletes, and there are no guidelines currently available to guide pharmacotherapy in nonasthmatic EIB patients. It is not known whether the recommended therapy for EIB in asthmatic athletes is as efficacious in nonasthmatic athletes who experience EIB. The most…

Exercise-Induced Bronchoconstriction in Athletes: Diagnosis

The presence of EIB has been shown to be difficult to diagnose clinically as symptoms are often nonspecific. The lack of standard diagnostic methodology in the past is partly responsible for the large variability in the reported prevalence of EIB across different sports. Figure 1 demonstrates our clinical approach to the diagnosis of EIB. A…

Exercise-Induced Bronchoconstriction in Athletes: Athletic Populations at Risk

Although athletes who compete in high-ventilation or endurance sports (Table 2) are more likely to experiences symptoms of EIB than those who participate in low-ventilation sports, EIB can occur in any setting. It is especially prevalent in endurance events such as cross-country skiing, swimming, and long-distance running in which ventilation is increased for long periods…

Exercise-Induced Bronchoconstriction in Athletes: Pathogenesis

The pathogenesis of EIB is likely multifactorial and is not completely understood. The predominant hypothesis for the etiology of EIB is that breathing relatively dry air causes the airways to narrow by osmotic and thermal consequences of evaporative water loss from the airway surface. These stimuli have been demonstrated to cause cough and mucus production…

Canadian Health&Care Mall: Exercise-Induced Bronchoconstriction in Athletes

Exercise-induced bronchoconstriction (EIB) describes acute, transient airway narrowing that occurs during and most often after exercise. EIB objectively is defined as a > 10% decline in FEVj after appropriate exercise provocation. Exercise is the most common trigger of bronchospasm in those who are known to be asthmatic, and 50 to 90% of all individuals with…