Short answer: not in any reliable, lasting way for healthy people.
What it does vs. what you want
Hyperbaric Oxygen Therapy temporarily increases how much oxygen is dissolved in your blood during the session. That sounds like it should boost endurance—but your body’s performance limits aren’t set by oxygen alone.
Endurance and stamina depend heavily on:
- Cardiovascular conditioning (VO₂ max)
- Mitochondrial efficiency
- Muscle adaptation to training
HBOT doesn’t meaningfully retrain those systems.
What the research suggests
- In healthy or athletic individuals: no consistent improvement in endurance, stamina, or VO₂ max
- Any perceived boost is usually short-lived or placebo-like
- It’s not comparable to altitude training or structured conditioning
Where it might help
HBOT can be useful around training, not for baseline stamina:
- Injury recovery (faster healing → you can train more consistently)
- Certain medical conditions affecting oxygen delivery
But that’s indirect—it’s not increasing your actual endurance capacity.
When it could matter medically
If someone has a condition that limits oxygen use (rare in otherwise healthy people), HBOT might improve overall function—but that’s a different scenario than performance enhancement.
Why it’s often marketed this way
Wellness clinics sometimes promote HBOT for “performance optimization,” but those claims are ahead of solid evidence. If it reliably boosted endurance, it would already be standard in elite sports—it isn’t.
What actually builds endurance and stamina
You’ll get far more return from:
- Progressive aerobic training (zone 2 + intervals)
- Strength training (improves efficiency)
- Sleep and recovery
- Nutrition (especially carbs for endurance work, iron status)
Bottom line
HBOT is not an effective tool for increasing endurance or stamina in healthy people. It can help with recovery in specific cases, but it won’t replace training adaptations.
