Exercise-Induced Shortness of Breath (Pediatric) Make an Appointment Ask a Question Search Conditions This information was reviewed and approved by J. Tod Olin, MD, MSCS (2/29/2012). In children, exertional dyspnea is an inability to comfortably breathe during exercise when compared with:Other children of the same age and size orA child’s previous experience.Asthma, which affects over 10% of Denver’s children, is the most common cause of exertional dyspnea in children. There are many other causes of exertional dyspnea in children.If children do not completely respond to asthma therapy as a treatment for exertional dyspnea, we recommend a thorough evaluation by a pediatric breathing and exercise specialist. More information on shortness of breath (dyspnea) Our Specialists More about Elizabeth M. Fan Elizabeth M. Fan, PA-C Programs and Services Exercise & Performance Breathing Center Clinical Trials For more than 100 years, National Jewish Health has been committed to finding new treatments and cures for diseases. Search our clinical trials.