Sidebar
Performance & VO2 Max

Performance & VO2 Max

  • Altitude Bedroom SystemAltitude Bedroom System

    Altitude Bedroom System

    Simply close your door, turn on your system via the Box Altitude App®, and let the system take care of the rest. Box Altitude specialises in retro-fitting bedrooms, offices or gyms with customised altitude systems. From a lifestyle point of view it is the...
    €9.000,00 EUR
    €9.000,00 EUR
  • Sleep Cloud Altitude SystemSleep Cloud Altitude System
    Choose Options

    Sleep Cloud Altitude System

    Sleep Cloud has redefined the sleeping at altitude space, quiet, attractive and efficient. Sleeping at altitude allows the body to produce a higher red blood cell count, thus boosting oxygen enriched blood, which leads to increased physical performance. Evidence suggests that the Live High...
    From €6.250,00 EUR
    From €6.250,00 EUR
    Choose Options
  • Training Cloud Altitude SystemTraining Cloud Altitude System
    Choose Options

    Training Cloud Altitude System

    Indoor training activities are often used by those with limited training time available, so to maximise the effectiveness of your indoor workout, add the Box Altitude Training Cloud system to you indoor training setup. Box Altitude designed the Training Cloud system to enhance your...
    From €5.900,00 EUR
    From €5.900,00 EUR
    Choose Options
Train at sea level. Your body produces a higher red blood cell count, your VO₂ max rises, and your ability to sustain effort at race pace improves measurably across a multi-week block. The same protocol used by 2024 Tour de France Femmes Champion Kasia Niewiadoma-Phinney, Cameron Wurf of INEOS Grenadiers, the Queensland Academy of Sport, and Australian national programs. Built into your daily life. No travel, no camp, no compromise on the rest of your training.

Why VO₂ Max Is the Most Important Number in Endurance Performance

VO₂ max is the maximum rate at which your body can take in, transport, and use oxygen during exhaustive exercise. It is the ceiling on every other endurance metric you care about. Functional threshold power. Lactate threshold. Race-pace sustainability over distance.

Trained athletes hit a structural ceiling on VO₂ max from training alone. You cannot lift it indefinitely with more intervals or more volume. The two reliable ways to push the ceiling higher are altitude exposure and the cardiovascular adaptations that come with it.

VO₂ max altitude training works because the limiting factor in oxygen delivery is haemoglobin mass (Hbmass), and Hbmass responds to chronic altitude exposure in a way it does not respond to sea-level training.

The Science of Altitude Training for Performance

The peer-reviewed evidence on altitude training and endurance performance is consistent and replicable.

3.1%
Hbmass increase after two weeks of sleep-high, train-low at 1,800m
0.6–0.7%
VO₂ max gain per 1% Hbmass increase (145-athlete study)
1.5–2%
VO₂ max increase from a typical altitude block

Sleeping at altitude triggers an EPO response, increases red blood cell production, and raises Hbmass. In a study using a sleep-high, train-low protocol at 1,800m (5,906ft), Hbmass increased by 3.1% after two weeks and 3.0% after three weeks of exposure.

In a study of 145 elite endurance athletes, every 1% gain in Hbmass produced a 0.6 to 0.7% gain in VO₂ max. Nineteen nights of LHTL exposure produced larger increases in Hbmass and repeated time-trial performance than equivalent sea-level training over the same period.

Translated to race outcomes: a 3% Hbmass gain over two to three weeks of altitude exposure typically delivers a 1.5 to 2% VO₂ max increase. For a competitive endurance athlete, that is the difference between sitting in the bunch and making the selection.

For the underlying methodology, read the how-to guide of sleeping at altitude.

Live High, Train Low: The Protocol That Works

The live high, train low system (LHTL) is the most studied altitude protocol in sports science. The principle is simple. Sleep, recover, and accumulate altitude exposure in a hypoxic environment. Train at sea-level oxygen so the body can hit the intensities that actually drive fitness.

Earlier altitude protocols used live-high, train-high methods. Athletes lived at altitude camps and did all their training at altitude. Two problems emerged. Training intensity was compromised because absolute power and pace are lower at altitude. And the duration of exposure was limited by the camp window.

LHTL fixed both. Adaptation happens overnight while you sleep. Training intensity stays uncompromised the next day. The protocol can run for as long as you want, year after year, without taking you off your normal training schedule.

A live high, train low system at home replaces the altitude camp without replacing the science.

What a Real Altitude Block Looks Like

Most elite athletes structure altitude exposure as a defined block inside the wider training year, not as a permanent state.

3–4 weeks
Typical block length inside the wider training year
2,200–2,500m
Sleep altitude for 8 to 11 hours per night
14–28 days
Peak adaptation window after the start of exposure

A typical block runs three to four weeks at a sleep altitude of 2,200 to 2,500m (7,218 to 8,202ft) for 8 to 11 hours per night. Hbmass climbs steadily across the block. The peak adaptation window is 14 to 28 days after the start of exposure.

Race timing is the critical variable. Most coaches build altitude blocks 2 to 4 weeks out from a key race so the Hbmass gain is still elevated at race time. Some athletes run a longer block (4 to 6 weeks) for stage races or season-long campaigns and accept a smaller per-week gain in exchange for cumulative volume.

Athletes running multiple altitude blocks per year see compounding effects. Cameron Wurf of INEOS Grenadiers, who races both the WorldTour road calendar and Ironman, stacks altitude blocks between disciplines and treats consistent altitude exposure as core infrastructure rather than a seasonal phase.

Read more on why athletes sleep at altitude.

Match Your Performance Goal to the Right Altitude Training System

Three Box Altitude systems serve three different performance use cases.

If your goal is sleep-based adaptation

The Sleep Cloud is the primary recommendation for most performance athletes. You sleep in the tent at your set altitude for 8 to 11 hours per night, accumulate exposure across a multi-week block, and train at sea level the next day. This is the cleanest implementation of the LHTL protocol and the most common choice among elite endurance athletes using Box Altitude.

Shop Sleep Cloud

If your goal is active hypoxic training

The Training Cloud is the right choice if you want to train inside the altitude environment as well as sleep in it. Pair it with a smart trainer, treadmill, rower, or Erg, and your indoor sessions become hypoxic sessions. The Training Cloud doubles as a sleep system using the same acoustic engineering as the Sleep Cloud, so one system covers both protocols.

Shop Training Cloud

If your goal is whole-room daily integration

The Altitude Bedroom System is the right choice for athletes running altitude exposure as a permanent part of their performance system rather than a periodic block. Your entire bedroom becomes the altitude environment. No tent. Two people share the same exposure. The system suits high-volume users and partner athletes integrating altitude into multi-year programs.

Request a Bedroom System Quote

Trusted by World-Tour Athletes and Olympic Programs

The athletes using Box Altitude for performance are at the top of their disciplines.

2024 Tour de France Femmes Champion Kasia Niewiadoma-Phinney runs Box Altitude as part of her performance system. Cameron Wurf of INEOS Grenadiers and Ironman runs altitude blocks between race seasons. Box Altitude is the official altitude partner of Team Bahrain Victorious. The Queensland Academy of Sport supplies its athletes with Box Altitude systems. Australian national endurance programs use Box Altitude for athlete preparation.

Kasia Niewiadoma-Phinney2024 Tour de France Femmes Champion
Cameron WurfINEOS Grenadiers & Ironman
Team Bahrain VictoriousOfficial altitude partner
Queensland Academy of SportSupplies athletes with Box Altitude
Australian National Endurance ProgramsAthlete preparation

The same engineering, the same protocol, and the same studies underpin every system Box Altitude builds, whether it is for a World Tour rider or a serious amateur preparing for a single key event.

For institutional and team enquiries, see commercial installations.

Frequently Asked Questions About Altitude Training for Performance

Peer-reviewed studies show a 3% Hbmass gain after 2 to 3 weeks of LHTL exposure at 1,800m. The 145-athlete study found that every 1% Hbmass gain produces a 0.6 to 0.7% VO₂ max gain, so a typical block delivers a 1.5 to 2% VO₂ max increase. Individual response varies. Genetics, baseline fitness, and exposure duration all contribute.

Some adaptation begins within the first few days. Measurable Hbmass and VO₂ max changes typically appear after 14 to 21 days of consistent exposure at 8 to 11 hours per night. Race-day benefit is usually highest 2 to 4 weeks after the end of the altitude block.

Sleep at altitude. Sleep is the efficient adaptation window because the body has the time and energy to focus on red blood cell production. Training at altitude compromises absolute power and pace, so training-stimulus is lower than equivalent sea-level work. The strongest evidence supports the LHTL protocol: live high, train low.

Most coaches build altitude blocks 2 to 4 weeks out from a key race or peak event. The Hbmass gain remains elevated for several weeks after exposure ends, which means a block timed correctly carries fitness into the most important races of the year. Athletes preparing for stage races or long campaigns sometimes use longer blocks earlier in the build.

The physiological response is the same. Reduced oxygen, EPO response, increased Hbmass, improved VO₂ max. The difference is sustainability and consistency. A mountain camp gives you weeks of exposure once or twice a year. A home altitude system gives you that exposure every night, year-round, without travel or time away from training.

For more, see the full FAQ or read about how athletes structure altitude training camps alongside home systems.

Take the Next Step

Choose the Box Altitude system that fits your performance goal.

Shop Sleep Cloud Shop Training Cloud Request a Bedroom System Quote