The Symptoms Of Exercise Induced Asthma

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If any aerobic activity causes difficulty in breathing and shortness of breathe it can be termed as exercise induced asthma. Many have observed that heavy exercise induced shortness of breathing and that dancing was more asthma triggering.  Cold air can also induce asthma fresh and cold air over the bronchial mucosa might trigger asthma by irritating the nervous system.

The duration and intensity of any exercise that trigger asthma depends mostly on one’s physical conditioning and tolerance level. During normal exercise, the bronchial tubes open or dilate to improve the ex¬change of oxygen and carbon dioxide. This opening up of the bronchial tubes is probably due to release of adrenaline from the adrenal gland. In asthmatics the reverse occurs when he exercises. The tubes tighten, and in a matter of minutes the exercising patient begins to experience coughing and wheezing. While many asthmatics are able to continue exercising or others must stop altogether. In some asthmatics the asthma symptoms may start only after many hours of exercising. This is called delayed exercise-induced asthma.  Most of asthma attacks which are exercise induced stop within one hour after exercise is stopped even if no treatment is given.

Certain types of aerobic and exercise activity may determine the degree of asthma.   Exercising in cold, dry air is much more likely to cause exercise induced asthma than exercising in warm, humid air. Running is more likely to trigger asthma of higher intensity than swimming or bicycling. Duration of exercise is also important in trigger exercise induced asthma – longer the time of activity higher is the intensity of wheezing, coughing and bronchospasm. Also many patients with Exercise Induced Asthma wheeze with aerobic activity only during their allergy season or during periods of high heat and humidity.

The diagnosis of Exercise Induced Asthma is fairly simple and the patient is most often aware of it. The doctor asks the patient to run for few minutes in tread mill and outdoor and peak expiratory flow rate is measured before and after they exercise. A drop in 15% of peak expiratory flow rate will clearly indicate Exercise Induced Asthma. EIA a mild asthma attack and for some patients it is their only form of asthma – they may not get asthma attacks normally. 

 

 


 
 
 

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