The Roadman Cycling Podcast Unlock Hidden Watts: The Science of Breathing for Power With Dr. Andrew Sellars
Oct 6, 2025
Dr. Andrew Sellars, a physician and innovator in respiratory training, shares insights that could revolutionize cycling performance. He discusses how focusing on breath can unlock new levels of endurance and recovery, rivaling traditional power metrics. Explaining tools like TimeWare and the SpiroTiger, he emphasizes the importance of CO₂ balance and how nasal breathing enhances performance. Dr. Sellars also outlines practical techniques for cyclists to assess and improve their breathing, predicting a future where respiratory analysis becomes as common as heart rate monitoring.
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Use CO2 Rebreathing For Safe Respiratory Training
- Rebreathing controlled CO2 lets you safely train respiratory muscles longer without destabilizing physiology.
- Use devices that balance CO2 so you can train breath control without harming gas exchange.
Train Breathing Offline To Protect Legs
- You can simulate a threshold respiratory load on the couch so legs and heart rest while breathing trains.
- Train breathing at race intensities to remove it as a limiting factor in intervals and races.
Nasal Breathing Aids Diaphragm And Airways
- Nasal breathing stimulates diaphragmatic coordination and can bronchodilate smaller airways.
- Nasal strips both open passages and encourage better diaphragmatic involvement than mouth breathing.
