Study note • PMID 9754977
Implications of moderate altitude training for sea-level endurance in elite distance runners.
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
Elite distance runners participated in one of two studies designed to investigate the effects of moderate altitude training (inspiratory partial pressure of oxygen approximately 115-125 mmHg) on submaximal, maximal… (controlled study; n=14 elite runners).
The abstract doesn’t indicate a clear change in Time-trial performance 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: Elite distance runners participated in one of two studies designed to investigate the effects of moderate altitude training (inspiratory partial pressure of oxygen approximately 115-125 mmHg) on submaximal, maximal…
- • The abstract doesn’t indicate a clear change in Time-trial performance under the tested conditions.
- • Population: n=14 elite runners.
- • Protocol cues (title/abstract): 21 days • 20 days • 3 weeks • 2000 m • 1640 m.
Protocol
Protocol (as reported)
- • Intervention/exposure: altitude, hypoxia (vs comparison group).
- • Dose/time/duration cues in abstract/title: 21 days • 20 days • 3 weeks • 2000 m • 1640 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=14 elite runners) 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=14 elite runners.
- • Comparator: comparison group.
- • Outcomes measured: VO₂max, Time-trial performance.
- • Protocol cues mentioned: 21 days • 20 days • 3 weeks • 2000 m • 1640 m.
- • Source: PubMed PMID 9754977 (1998) — European journal of applied physiology and occupational physiology.
Results excerpt
What the abstract reports
“However, the lactate threshold and other measures of running economy remained unchanged.”
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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