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Licensed Speech-Language Pathologist & Functional Breathing Instructor with a specialized focus on the treatment of EILO
For years, Karie experienced exactly what her patients describe — exercise-induced breathlessness at peak effort that was hard to explain and even harder to treat. That personal journey became the foundation of Functional Airway Lab, and it shapes everything she does.
Karie didn't just study EILO. She lived it, treated it, and resolved it — using the same integrated methods she now brings to every athlete she works with. That combination of lived experience and advanced clinical training is rare.
Karie's experience with exercise-induced breathlessness began in adolescence. At peak effort, she'd feel throat tightness, noisy breathing, and the unsettling sense of not being able to get air in — symptoms that would resolve quickly after stopping activity. Sound familiar?
Like many athletes, she had a hard time putting words to what she was feeling, and providers she saw didn't yet have a clear explanation for it. She kept training. The questions kept coming. She held on to the belief that answers existed — she just hadn't found them yet.
When Karie pursued speech-language pathology, she was introduced to exercise-induced laryngeal obstruction (then more commonly called vocal cord dysfunction or paradoxical vocal fold motion). She recognized it immediately — this was what she had been experiencing throughout her athletic career.
She began applying the respiratory retraining techniques central to SLP practice for EILO. They made a difference, but didn't fully resolve her symptoms. This deepened her curiosity: what would it look like to go even further, to address not just the mechanics but the full picture of how breathing works as a system?
Karie completed her clinical doctorate in speech-language pathology at Rocky Mountain University of Health Professions, focusing her research specifically on EILO in adolescent and young adult athletes. Her clinical background gave her a strong foundation. She left with new questions, a deeper evidence base, and a drive to keep building on what SLP practice had already given her.
While completing her doctorate, Karie pursued advanced training in functional breathing retraining — becoming a Certified Buteyko Breathing Practitioner and an Advanced Oxygen Advantage Instructor, and completing the P.I.E. Approach for EILO Level 1.
This work expanded her clinical toolkit, adding breathing mechanics, respiratory chemistry, and nervous system regulation to the laryngeal retraining techniques at the heart of SLP-based EILO care. Together, these approaches form an integrated system — one that goes beyond managing symptoms toward lasting resolution.
Start with a complimentary 15-minute phone consultation with Dr. Karie Marsh. No commitment — just a direct conversation about your symptoms and whether Functional Airway Lab is the right fit.
4532 Telephone Road suite 114, Ventura, CA, USA
(805) 754-7768 karie@functionalairwaylab.com 4532 Telephone Rd., Suite 114 Ventura, CA 93003
Mon | By Appointment | |
Tue | By Appointment | |
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Fri | By Appointment | |
Sat | By Appointment | |
Sun | By Appointment |
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