Study note • PMID 30450254
The effect of sex and performance level on pacing in cross-country skiers: Vasaloppet 2004-2017.
Worth trying if it fits your goal and context.
ELI5
In plain language
BACKGROUND: Pacing, defined as percentage changes of speed between successive splits, has been extensively studied in running and cycling endurance sports; however, less information about the trends in change… (controlled study; n=19 athletes).
Effects on Time-trial performance are mixed or unclear from the abstract alone. Treat this as a signal, not a guarantee; confirm methods and context in the full paper.
Takeaways
What the abstract suggests
- • Study question: BACKGROUND: Pacing, defined as percentage changes of speed between successive splits, has been extensively studied in running and cycling endurance sports; however, less information about the trends in change…
- • Effects on Time-trial performance are mixed or unclear from the abstract alone.
- • Population: n=19 athletes.
- • Protocol cues (title/abstract): 4 km • 7 km.
Protocol
Protocol (as reported)
- • Intervention/exposure: pacing, splits.
- • Dose/time/duration cues in abstract/title: 4 km • 7 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=19 athletes) 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=19 athletes.
- • Outcomes measured: Time-trial performance.
- • Protocol cues mentioned: 4 km • 7 km.
- • Source: PubMed PMID 30450254 (2018) — Journal of sport and health science.
Results excerpt
What the abstract reports
“Male and fast XC skiers are more even pacers.”
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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