Study note • PMID 42199500
Protocol for a randomized controlled trial investigating the effects of sleep extension on body weight and learning in children (More2Sleep).
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: randomized trial.
- • Population relevance: mixed/unclear athlete specificity.
- • Consistency: single-study evidence.
- • Practical recommendation depends on tolerance, context, and whether it protects training consistency.
ELI5
In plain language
To assess the effects of sleep extension on body weight regulation and learning ability in school-aged children with nocturnal sleep below recommendations for their age. (randomized trial; n=71 participants).
The abstract reports an association involving Sleep quality, Recovery speed (not necessarily causation). Treat this as a signal, not a guarantee; confirm methods and context in the full paper.
Takeaways
What the abstract suggests
- • Study question: To assess the effects of sleep extension on body weight regulation and learning ability in school-aged children with nocturnal sleep below recommendations for their age.
- • The abstract reports an association involving Sleep quality, Recovery speed (not necessarily causation).
- • Population: n=71 participants.
- • Protocol cues (title/abstract): 12 weeks • 9 h • 45 min • 90 min.
Protocol
Protocol (as reported)
- • Intervention/exposure: sleep extension (vs control group).
- • Dose/time/duration cues in abstract/title: 12 weeks • 9 h • 45 min • 90 min.
- • Outcomes: Sleep quality, Recovery speed.
- • 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=71 participants) working on sleep.
- • Athletes who can measure Sleep quality, Recovery speed 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: randomized trial.
- • Population: n=71 participants.
- • Comparator: control group.
- • Outcomes measured: Sleep quality, Recovery speed.
- • Protocol cues mentioned: 12 weeks • 9 h • 45 min • 90 min.
- • Source: PubMed PMID 42199500 (2026) — Frontiers in pediatrics.
Results excerpt
What the abstract reports
“Discussion: This study has broad implications as it can potentially inform future sleep recommendations and treatment strategies to reduce overweight/obesity and improve children's metabolic health and learning abilities.”
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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