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Study note

Altitude training and its influence on physical endurance in swimmers.

PMID 23486564 (2011): altitude, hypoxia — VO₂max, Time-trial performance (study note for endurance athletes).

Updated Jul 22, 2026

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Study note • PMID 23486564

Altitude training and its influence on physical endurance in swimmers.

Journal of human kinetics2011 • DOI 10.2478/v10078-011-0026-9

How to use this page

This note summarizes one study record. Check the participants, methods, results, and limitations before applying it to training.

  • Design signal: review.
  • Population relevance: athlete/trained context.
  • Consistency: single-study evidence.
  • Practical recommendation depends on tolerance, context, and whether it protects training consistency.

ELI5

In plain language

It is possible to plan an altitude training (AT) period in such a way that the enhanced physical endurance obtained as a result of adaptation to hypoxia will appear… (review; trained athletes).

In this review, the abstract suggests a positive relationship with Time-trial performance. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.

Takeaways

What the abstract suggests

  • Study question: It is possible to plan an altitude training (AT) period in such a way that the enhanced physical endurance obtained as a result of adaptation to hypoxia will appear…
  • In this review, the abstract suggests a positive relationship with Time-trial performance.
  • Population: trained athletes.
  • Protocol cues: abstract may omit dose/timing; use the full paper to replicate accurately.

Protocol

Protocol (as reported)

  • Intervention/exposure: altitude, hypoxia.
  • Dose/time/duration: abstract doesn’t include enough detail; use the full paper’s methods section.
  • Outcomes: VO₂max, Time-trial performance.
  • Replication note: abstracts often omit adherence and timing; confirm details before changing training or supplementation.

Fit

Who it may help, and who should be cautious

Who it helps

  • Athletes similar to the study population (trained athletes) working on altitude.
  • Athletes who can measure VO₂max, Time-trial performance with a repeatable workout or time-trial effort.

Who should be cautious

  • If you have symptoms or conditions that make the intervention risky, get professional guidance.
  • If you’re near race day and can’t safely test, defer the experiment.

Methods

What the study actually did

  • Design: review.
  • Population: trained athletes.
  • Outcomes measured: VO₂max, Time-trial performance.
  • Source: PubMed PMID 23486564 (2011) — Journal of human kinetics.

Results excerpt

What the abstract reports

Moreover, AT results in the sport of swimming have been collected.

Note: excerpts are short; for full context, read the paper.

Limits

Limitations and bias

  • Abstract-only summaries can miss critical details (population, protocol, adherence, and context).
  • Reviews and consensus statements mix protocols and populations; recommendations may not match your exact constraints.
  • If your context differs (elite vs recreational; cycling vs running), adjust expectations and be conservative.
  • This is performance information, not medical advice.

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