Study note • PMID 35580843
Marathon Performance and Pacing in the Doha 2019 Women's IAAF World Championships: Extreme Heat, Suboptimal Pacing, and High Failure Rates.
Worth trying if it fits your goal and context.
ELI5
In plain language
The Doha 2019 women's World Championship marathon took place in extreme hot (32 degrees C), humid conditions (74% relative humidity) culminating in unprecedented (41%) failure rates. (controlled study; n=40 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: The Doha 2019 women's World Championship marathon took place in extreme hot (32 degrees C), humid conditions (74% relative humidity) culminating in unprecedented (41%) failure rates.
- • The abstract doesn’t indicate a clear change in Time-trial performance under the tested conditions.
- • Population: n=40 runners.
- • Protocol cues (title/abstract): 10 km • 15 km • 20 km.
Protocol
Protocol (as reported)
- • Intervention/exposure: pacing (vs comparison group).
- • Dose/time/duration cues in abstract/title: 10 km • 15 km • 20 km.
- • Outcomes: Time-trial performance.
- • Replication note: abstracts often omit adherence and timing; confirm details before changing training or supplementation.
Fit
Who it helps, and who should skip it
Who it helps
- • Athletes similar to the study population (n=40 runners) working on pacing.
- • Athletes who can measure Time-trial performance with a repeatable workout or time-trial effort.
Who should skip
- • 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=40 runners.
- • Comparator: comparison group.
- • Outcomes measured: Time-trial performance.
- • Protocol cues mentioned: 10 km • 15 km • 20 km.
- • Source: PubMed PMID 35580843 (2022) — International journal of sports physiology and performance.
Results excerpt
What the abstract reports
“Top 10 athletes adopted a conservative initial pace, whereas lower-placing athletes adopted a faster, aggressive start.”
Note: excerpts are short; for full context, read the paper.
Limits
Limitations & 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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