Research summary · Training and performance
Hypoxic training and competitive swimming performance
Eleven controlled studies involving 182 competitive swimmers compared training in hypoxic and normal-oxygen conditions, with outcomes pooled using random-effects meta-analysis.
- Publication year
- 2026
- First published online
- Publication type
- Systematic review and meta-analysis
- Journal
- Frontiers in Physiology
- Population / context
- Competitive swimming
What the publication reports
Hypoxic interventions produced a small pooled improvement in swimming performance, with a standardized effect of -0.34. Maximal oxygen uptake, peak heart rate and peak ventilation did not show clear changes.
Limits and interpretation
Many included studies had risk-of-bias concerns, especially around randomization and intervention delivery. Small samples and exploratory distance or altitude subgroups limit prescription-level conclusions; the review does not establish the mechanism or a universally optimal protocol.
Read the source
Consult the original record for the full author list, methods, references, funding and competing-interest disclosures.
The effect of hypoxic interventions on swimming performance in competitive athletes: a systematic review and meta-analysis
Original publication / indexed recordPMID: 41736946DOI: 10.3389/fphys.2026.1755641Full text at the sourceReader discussion
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