Breathing training for cycling gives you a way to train the respiratory system without adding more fatigue to your legs. The goal is not to replace intervals, endurance rides, or strength work. It is to develop the breathing volume, endurance, and control required to support those sessions when ventilation becomes demanding.
Cyclists measure power, heart rate, cadence, lactate, and aerobic capacity, yet breathing is often treated as an automatic process that will improve enough through riding alone. It does receive a training stimulus on the bike, but creating a large respiratory load through cycling also creates a large load on the legs and the rest of the body. Focused respiratory training separates those demands.
The short answer
- Train breathing separately from cycling. The BWB is used at rest, not while riding.
- Begin with mechanics and short sessions. Learn to use a larger, controlled range of motion before increasing duration or intensity.
- Progress respiratory endurance. Use the guided app programs to build the ability to sustain high-volume inhalation and exhalation.
- Transfer the result to the bike. Apply better rhythm, depth, posture, and control during warm-ups, climbs, time trials, and repeated hard efforts.
- Measure what matters. Track breathing control, perceived breathlessness, recovery between efforts, power at a given respiratory response, and objective testing when available.
Why cycling alone may leave a respiratory gap
Hard rides can challenge the respiratory muscles, but they are an expensive way to target them. Hill repeats, threshold intervals, and race simulations raise ventilation by increasing whole-body metabolic demand. Your legs accumulate fatigue, glycogen is used, and the session adds recovery cost even if the respiratory system was the quality you wanted to develop.
The breathing muscles also contain a substantial proportion of fatigue-resistant fibres. A few hard breaths may develop pressure strength, but cyclists need more than a strong single inhale. Sustained riding requires thousands of coordinated inhalations and exhalations while posture, cadence, power, and terrain continue to change.
Focused training lets a rider place a meaningful load on the respiratory system while the peripheral system remains fresh. That makes breathing work easier to add around important rides without turning every respiratory session into another leg session.
How breathing can limit cycling performance
As cycling intensity increases, carbon dioxide production and ventilatory demand rise. The rider must move more air while maintaining an effective breathing pattern. If breath size, respiratory endurance, or coordination cannot meet that demand, breathing frequency can rise sharply, mechanics become less efficient, and breathlessness may force a reduction in power.
Respiratory work also has a circulatory cost. Research manipulating the work of breathing during exercise shows that respiratory muscle work can influence how blood flow is distributed between the breathing and locomotor muscles. This does not mean every cyclist is respiratory-limited, but it explains why the system deserves assessment rather than assumption. Read the primary blood-flow study.
Signs your breathing may be limiting you on the bike
- Your breathing rate jumps early while your legs still feel capable.
- You lose breathing rhythm on climbs, during time trials, or after repeated surges.
- You rely on small, rapid upper-chest breaths as intensity rises.
- Breathlessness, rather than leg fatigue, makes you back off.
- Your breathing takes longer than expected to settle between intervals.
- You struggle to access deep inhalation or complete exhalation in an aerodynamic position.
- A respiratory step test shows that you use only a small portion of the volume available on spirometry.
These signs are clues, not a diagnosis. Heat, altitude, illness, pacing, anxiety, bike fit, and insufficient aerobic conditioning can also change breathing. A lab assessment that combines spirometry, gas exchange, breathing frequency, tidal volume, and power provides a more objective answer.
What cyclists should train
1. Usable breathing volume
A large spirometry value is useful only if the rider can access that volume when demand rises. Training should develop the ability to inhale through a fuller rib-cage and abdominal range, then exhale completely and under control.
2. Respiratory endurance
Cycling performance requires sustained ventilation, not one maximal breath. Respiratory endurance training prepares the breathing muscles to repeat large, coordinated cycles for longer periods.
3. Strength and power
Pressure-generating strength can matter, particularly when testing identifies an inspiratory weakness. The BWB also creates resistance, especially as ventilation and airflow increase. Cyclists with a clear maximal-strength deficit may combine sustained Isocapnic work with a pressure-threshold method. Compare the two respiratory training methods.
4. Coordination under changing demand
Cadence, terrain, posture, fueling, and power all affect breathing. The aim is not to force one breathing frequency at every intensity. It is to give the rider more control and more usable options as the task changes.
Why Isocapnic training is different
Simply breathing hard at rest can lower carbon dioxide faster than metabolism produces it. Falling CO₂ changes blood pH and may cause tingling, lightheadedness, or discomfort before the respiratory muscles receive enough sustained work.
The BWB uses a calibrated rebreathing circuit that recaptures a controlled portion of exhaled air while continuously admitting fresh air. During standard training, this helps maintain CO₂ and support normal oxygen saturation. The rider can therefore sustain high-volume inhalation and exhalation long enough to train volume, endurance, rhythm, and coordination.
This is voluntary isocapnic hyperpnea. It is a full-cycle endurance method, not an altitude mask and not a restriction device worn during exercise. Learn the broader method in the complete respiratory muscle training guide.
How the four stages fit a cycling program
Stage 1: Use the warm-up as the foundation
Start with the free five-minute warm-up in the Isocapnic app before your regular training sessions. This is not merely a beginner lesson. It prepares breathing range, air movement, respiratory muscle blood flow, and control, and it can remain part of an athlete’s routine at every level.
Stage 2: Use Isocapnic training as the workout
Once the warm-up is established, use the BWB as a separate respiratory workout. Start with a five- or ten-minute balanced session, then progress through app programs for volume, endurance, strength and power, coordination, or interval capacity. Two or three specific respiratory sessions per week can fit around key rides when the load is progressed carefully.
Stage 3: Add advanced methods when they serve a clear purpose
Advanced work can include interval Isocapnic training, recovery and downregulation sessions, simulated-altitude exposure, and protocols that intentionally manipulate oxygen or carbon dioxide. Follow the prescribed app settings and safety guidance. Use appropriate monitoring, including pulse oximetry when instructed, and seek practitioner oversight for advanced gas-exchange work.
Stage 4: Turn breathing into a sport strategy
Remove the device before riding. On the bike, practise accessing a larger breath, maintaining rhythm in the position where you race, and regaining respiratory control after hills or surges. The BWB develops capacity off the bike; riding teaches you to apply it.
The stages do not need to be completed once and abandoned. Stage 1 remains the foundation, Stage 2 deliberately develops the respiratory system, Stage 3 adds advanced applications, and Stage 4 builds ownership in sport. An athlete can use the warm-up before every workout, complete specific respiratory training two or three times per week, use an appropriate recovery session, and practise better breathing strategies in the same training phase. Read the full integration framework.
Where breathing sessions fit in a cycling week
| Placement | Purpose | Practical note |
|---|---|---|
| Before an easy or key ride | Respiratory warm-up and range of motion | Complete the session off the bike, then remove the device before riding |
| After an easy ride | Technique, volume, or a controlled endurance session | Useful when the next day does not require maximal respiratory freshness |
| Separate from cycling | Focused endurance, interval, strength, or power work | Treat it as a real training session and progress gradually |
| Recovery day | Light mechanics or guided recovery work | Keep the respiratory load consistent with the purpose of the day |
Use the five-minute Stage 1 warm-up before regular training sessions. Treat Stage 2 as a separate training dose: two or three specific respiratory sessions per week is a practical starting structure, with duration and difficulty guided by the app, the cycling load, technique, and recovery. The warm-up and the respiratory workout are different uses of the BWB and should not be counted as the same recommendation.
What cycling research shows
Respiratory training studies in cyclists use different methods, populations, and outcomes, so the results should not be treated as one guaranteed effect.
- A randomized study of fit cyclists reported improved respiratory muscle endurance and an improvement in a roughly 40-minute cycling time trial after respiratory muscle endurance training with hyperpnea. Read the study.
- A placebo-controlled study reported improved 25-km time-trial performance after six weeks of inspiratory pressure-threshold training, showing that respiratory strength can also matter. Read the study.
- A 2021 study found improved 10-km cycling time-trial performance after four weeks of eucapnic hyperpnea, with larger effects in hypoxia and different responses between women and men. Read the study.
- Not every respiratory intervention improves every outcome. A study of an inspiratory warm-up found no additional improvement in 10-km time-trial performance beyond a cycling warm-up. Read the study.
The useful conclusion is not that one breathing session guarantees more watts. It is that respiratory endurance, respiratory strength, warm-up, and sport transfer are distinct interventions. The method must match the limiting quality.
What Isocapnic has observed with cyclists
Dr. Andrew Sellars has used respiratory assessment and training with cyclists for decades. In his Roadman Cycling Podcast conversation, he explains how breathing frequency, tidal volume, CO₂ control, posture, and sport-specific transfer fit into endurance performance.
Isocapnic has also summarized a 48-week observational report involving ten elite male cyclists. The riders combined respiratory muscle training, breathing strategies, and progressive sport integration. Meaningful changes were reported in breathing pattern and cycling power, but the report had no control group and used a combined intervention. It supports further study rather than proving that the BWB alone caused the results. Read the elite-cyclist analysis and its limitations.
Measured athlete case study: Cory Wallace
Six-time 24-hour mountain bike world champion Cory Wallace has worked with Coach Luke Way since respiratory testing identified his breathing system as a performance limiter in 2009. His case study brings together recorded spirometry from 2009 to 2026, training history, photographs, race context and Cory’s own account of how respiratory training became part of his preparation. It is a detailed individual case, not proof that one intervention caused his competitive results. Read the measured Cory Wallace case study.
How to measure progress
- Subjective: breathing feels less laboured at familiar power outputs.
- Control: you maintain rhythm and access deeper breaths later into hard efforts.
- Recovery: breathing settles sooner between climbs or intervals.
- Training capacity: you can sustain more volume or a harder app program with good technique.
- Bag volume: clipping or rolling the bag at a repeatable comfortable tidal volume gives you a simple reference.
- Performance data: compare power, respiratory frequency, tidal volume, ventilation, and perceived exertion under standardized conditions.
- Lab testing: repeat spirometry and gas-exchange testing when the result will change the training prescription.
BWB-Sport or BWB-Mask for cyclists?
- BWB-Sport is the best starting point for most cyclists. The mouthpiece system is compact, simple, and easy to carry when travelling to training camps or races.
- BWB-Mask is useful for hands-free, oral, or nasal respiratory sessions and for riders who prefer a mask during longer off-bike protocols.
Frequently asked questions
Should I use the BWB while riding?
No. Use the BWB at rest in a safe setting. Do not use it while cycling, driving, running, or performing another physical activity. Complete the respiratory session, remove the device, and then transfer the trained breathing capacity to your ride.
Can breathing training improve FTP?
Respiratory training can support cycling performance when breathing is a meaningful limitation. Some cycling studies report improved time-trial performance or power-related outcomes, while others show outcome-specific or null results. FTP also depends on aerobic conditioning, muscular durability, fueling, pacing, and testing reliability. No breathing device can guarantee an FTP increase.
Does respiratory training replace VO₂ max intervals?
No. Bike intervals train the integrated cardiovascular, metabolic, neuromuscular, and cycling-specific system. Respiratory training adds a focused stimulus that may help remove a breathing limitation without adding the same peripheral fatigue.
How quickly should cyclists progress?
Progress when the current sessions feel controlled, technique remains consistent, and you are not carrying unwanted respiratory fatigue into priority rides. Increase one variable at a time and use the app’s program levels rather than jumping immediately to advanced protocols.
Can I do nasal breathing training with the BWB?
BWB-Mask supports oral or nasal training. BWB-Sport uses a mouthpiece, so a nose clip helps prevent leaks and keeps the calibrated circuit working as intended.
The bottom line
Cyclists do not need another way to exhaust their legs. They need a focused way to determine whether breathing is a limiter and, when it is, to train the missing quality. Isocapnic respiratory training develops sustained, high-volume inhalation and exhalation while controlling the CO₂ loss that normally limits prolonged hyperpnea at rest.
Start with mechanics, progress through the app, place the respiratory load intelligently around your rides, and measure whether breathing becomes less limiting on the bike.
This article is intended for athletic and general wellness education. BWB products are not medical devices for diagnosis or treatment. People with respiratory, cardiovascular, or other health conditions should consult their clinician before beginning respiratory training. Follow the app, manual, and safety guidance. Stop if you feel dizzy, lightheaded, or unwell. Individual results vary.
AUTHORSHIP AND TRANSPARENCY
About this article
Written by
Coach Luke Way is the founder and CEO of Isocapnic and has coached endurance athletes for 20 years. He specializes in elite triathlon, mountain biking, CrossFit, and physiology-led athlete assessment.
Scientifically reviewed by
Dr. Andrew Sellars is a Canadian physician, anesthesiologist, performance physiologist, entrepreneur, and coach with a Master's degree in Athletic Coaching. He co-founded VO2 Master and is Co-Founder, Chief Science Officer, and Physiology Advisor at Isocapnic Technologies Inc., where his work focuses on biomarker-guided training and respiratory performance.
Review completed: August 1, 2026
