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Exercise & Performance Breathing Center

Our Mission

The mission of the Exercise & Performance Breathing Center at National Jewish Health is to empower children and adults of any athletic level to exercise to their fullest capacity and overcome associated medical and psychosocial barriers now and in the future through elite clinical care, discovery, and teaching care providers.


Who We Serve

We cater specifically to people for whom exercise is a part of identity, a source of enjoyment in life, and a means for caring for the body. This includes adolescents and teens that thrive on recreational and competitive sports, collegiate and professional athletes, and adults that continue to push the body. We also serve as a specialty referral center for children with special needs struggling with exercise, older adults with confusion around medical diagnoses related to exercise, and those looking to use exercise as a treatment for disease.


Our Services

Exercise Breathing Center at National Jewish HealthThe Exercise & Performance Breathing Center at National Jewish Health addresses an unmet need for the evaluation of exercise intolerance and treatment of exercise-related respiratory problems. National Jewish Health possesses the personnel needed to make comprehensive evaluations, a state-of-the-art exercise physiology lab, and innovative on-site therapists to aid in treatment of specific problems and to guide administration of exercise as a medicine.

We have exercise specialists with expertise across the age spectrum, including pulmonologists, cardiologists, allergists, otolaryngologists, speech-language pathologists, and behavioral health providers.

Our team collaborates directly with Rehabilitation Services, Speech Therapy, and Behavioral Health to help our patients achieve their goals. We have ongoing dialogue with specialists in pediatric and adult cardiology, otolaryngology, psychology, performance psychology, endocrinology, and neurology as well as adult pulmonology, cardiology, and performance psychology.

We are one of a few centers in the world that can readily perform continuous laryngoscopy during exercise, a diagnostic procedure for exercise-induced laryngeal obstruction (aka vocal cord dysfunction), which enables the visualization of the upper airway during intense exercise.

We have also invented therapies for this condition including therapeutic laryngoscopy during exercise and the Olin EILOBI breathing techniques.

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Tests We Offer

  • Cardiopulmonary Exercise Testing

  • Continuous Laryngoscopy during Exercise

  • Therapeutic laryngoscopy during Exercise

  • Exercise-Induced Asthma treadmill testing

  • Eucapnic Voluntary Hyperventilation for exercised-induced asthma


Additional Information

Learn more about asthma and athletes and how they could be misdiagnosed.

Meet Lexi Beggan, a runner who used therapeutic laryngoscopy during exercise and the Olin EILOBI breathing techniques to perform her best.

Our Specialists

  • Elizabeth M. Fan

    Elizabeth M. Fan, PA-C

  • Marjorie Patricia George

    Marjorie Patricia George, MD

  • Darlene Kim

    Darlene Kim, MD, FACC

  • Michael P. Mohning

    Michael P. Mohning, MD

  • J. Tod Olin

    J. Tod Olin, MD, MSCS

  • Zulma X. Yunt

    Zulma X. Yunt, MD

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