Why Train Your Breathing Muscles?
Your diaphragm and the muscles between your ribs work like any other muscles: with the right training, they can get stronger and work more efficiently. Respiratory muscle training (RMT) uses guided breathing exercises and breathing trainers to build them up as part of an overall fitness routine.
Athletes use RMT to support endurance and performance. Others use it to feel more in control of their breathing during exercise and everyday activity.

The 6 Pillars of O2Max Breathing Training
A balanced program trains every part of how you breathe.
Volume
Exercises that work through your full breathing range.
Strength
Resistance training for the muscles you use to breathe in and out.
Coordination
Smooth, controlled breathing as effort rises, so you feel less out of breath.
Endurance
Stamina for your diaphragm and the other muscles that support breathing.
Mobility
Stretching and mobility work for your rib cage and upper body.
Mind & Body
Breathing techniques for relaxation, recovery and better sleep habits.

What the Program Includes
- Breathing techniques, including nasal breathing and CO₂ tolerance drills
- Guided video workouts you can follow at home
- Breathing-trainer sessions that progress as you get stronger
- Simple breathing checks to track your progress
- Core, mobility and cardio work that supports your breathing
Respiratory muscle training is also part of the VO2 Max Optimization Program.
Two Ways to Train
Online program
A self-paced video program in the CoachRx app, with coach check-ins and progress tracking. Train from anywhere in the U.S.
In person
One-on-one sessions paired with a health assessment, available through O2Max partner clinics and onsite programs.
Start Breathing Training
Tell us about your goals and we will recommend the right program for you.