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Outdoor Running Event

RESTORE YOUR BREATHING.
PERFORM WITH CONFIDENCE.

Optimize Your Airway and Performance Through Functional Breathing Retraining

WELCOME TO FLO2

FLO2 is a holistic speech therapy and wellness practice specializing in breathing rehabilitation for conditions such as breathing pattern disorder, vocal cord dysfunction, exercise-induced laryngeal obstruction, and exercise-induced asthma. We use clinical, science-based breathing retraining techniques to restore efficient breathing  — helping you to breathe better at rest, during exercise, and in everyday life. 

 

Additionally, FLO2 offers breathing wellness coaching for individuals looking to improve their breathing control and efficiency. This coaching is particularly beneficial for optimizing breathing during exertion, high-intensity training, and sport.

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SERVICES

OUR APPROACH

Athletes chose FLO2 for:

Functional breathing retraining

CO2 tolerance development

Nervous system regulation

Sport-specific application

Athletes learn how to breathe efficiently under load — so their airway stays open when it matters most.

SPECIALIZED BREATHING THERAPY FOR ATHLETES

FLO2 provides functional breathing therapy tailored for:

Middle school athletes

High school competitors

Collegiate athletes

Endurance athletes

Elite athletes

WHY ATHLETES CHOOSE FLO2 

FLO2 provides:

Specialization in exercise-induced airway disorders

Performance-focused treatment

Individualized breathing programs

Clear, objective measurements

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DR. KARIE MARSH

Hi! I am Karie Marsh, a licensed and nationally certified Speech-Language Pathologist (SLP), a Certified Buteyko Breathing Method Practitioner, and an Advanced Oxygen Advantage® Instructor. I received my Clinical Doctorate in Speech-Language Pathology from Rocky Mountain University of Health Professions, where I conducted a research study on exercise-induced laryngeal obstruction.

 

With 15 years of experience as a medical SLP, specialized certifications, and my own personal history of struggling with breathlessness during exercise, I am here to support you in restoring confident, efficient breathing. Together, we can overcome the challenges of exercise-induced breathlessness so you can move, train, and live without limitation.

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TESTIMONIALS

“Words cannot express the gratitude I have for Karie and the amazing work she has done with my daughter. My daughter had been diagnosed with exercise-induced laryngeal obstruction (EILO), and, as a national caliber runner, this was very distressing to deal with - her performances were being affected, and the stakes felt high with her dreams of running at a D1 program in college. We had already been to a speech pathologist, which had been helpful, but still left my daughter with many symptoms to deal with, especially during intense training sessions. The difference between the first speech pathologist and Karie was night and day. Karie is at the forefront of research and took a cutting-edge and innovative approach with my daughter. She is also a great educator and takes the time to explain the diagnosis and her methods, which made the process very approachable for my daughter. The results were remarkable! My daughter improved rapidly, ran all of her races with zero breathing issues, and had amazing performances to match! She is in control of her symptoms now and no longer fears hard workouts or races, knowing she has the tools she needs. I can't thank Karie enough - she helped my daughter bring back her joy and confidence in running and life as an athlete!"

CONTACT US

4532 Telephone Rd.

Suite 114

Ventura, CA 93003

805-754-7768

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© 2026 by FLO2 Airway & Speech Pathology, Inc.

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Hours of operation 

Mon - Fri: By Appointment

Sat-Sun: Closed

contact us

4532 Telephone Rd.

Suite 114

Ventura, CA 93003

 

Email: karie@flo2breathing.com

Telephone: 805-754-7768

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