Breath-Hold workouts could give mountaineers an edge
NCT ID NCT07703839
First seen Jul 14, 2026 · Last updated Jul 21, 2026 · Updated 3 times
Summary
This study tests whether adding brief, controlled breath-holds to treadmill interval training improves cardiorespiratory fitness more than interval training alone. Twenty-four male recreational mountaineers will follow an 8-week program, with one group performing structured breath-holds during exercise and the other breathing freely. Researchers will measure changes in resting heart rate, estimated maximal oxygen uptake, and blood pressure to see if this mild hypoventilation technique offers extra benefits for altitude preparation.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- a breathing maneuver called voluntary hypoventilation training (VHT) involving structured breath-holds during exercise
- What this could lead to
- If it works, this technique could help mountaineers and athletes improve fitness and prepare for high altitudes without special equipment.
- What could go wrong
- This is a small, early study in healthy men only, so results may not apply to women or less fit individuals. The breath-hold method may not provide extra benefit over standard training.
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The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Sport Sciences Department, University of Sistan and Baluchestan
Zahedan, Sistan and Baluchestan, 98135-986, Iran
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