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Study note

Maximal inspiratory pressure following endurance training at altitude.

PMID 8112283 (1994): altitude — VO₂max, Time-trial performance (study note for endurance athletes).

Updated Jul 22, 2026

Read the study note

Study note • PMID 8112283

Maximal inspiratory pressure following endurance training at altitude.

Ergonomics1994 • DOI 10.1080/00140139408963623

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: controlled study.
  • 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

Effects of endurance training on maximal inspiratory pressure and fatigue were evaluated after 5 weeks. (controlled study; n=7 trained participants).

The abstract doesn’t indicate a clear change in VO₂max under the tested conditions. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.

Takeaways

What the abstract suggests

  • Study question: Effects of endurance training on maximal inspiratory pressure and fatigue were evaluated after 5 weeks.
  • The abstract doesn’t indicate a clear change in VO₂max under the tested conditions.
  • Population: n=7 trained participants.
  • Protocol cues (title/abstract): 5 weeks • 5 days • 45 min • 1 min • 70% VO2max • 2500 m.

Protocol

Protocol (as reported)

  • Intervention/exposure: altitude.
  • Dose/time/duration cues in abstract/title: 5 weeks • 5 days • 45 min • 1 min • 70% VO2max • 2500 m.
  • 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 (n=7 trained participants) 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: controlled study.
  • Population: n=7 trained participants.
  • Outcomes measured: VO₂max, Time-trial performance.
  • Protocol cues mentioned: 5 weeks • 5 days • 45 min • 1 min • 70% VO2max • 2500 m.
  • Source: PubMed PMID 8112283 (1994) — Ergonomics.

Results excerpt

What the abstract reports

Furthermore, VEmax and VO2 max increased approximately 13% despite unchanged maximal inspiratory pressure and inspiratory muscle fatigue.(ABSTRACT TRUNCATED AT 250 WORDS)

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).
  • Single studies often don’t generalize to your event, history, and training load; treat results as a starting point.
  • 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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