Study note • PMID 40868825
Single-Night Sleep Extension Enhances Morning Physical and Cognitive Performance Across Time of Day in Physically Active University Students: A Randomized Crossover Study.
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
This study investigated the effects of a single-night sleep extension protocol on physical performance and cognitive function in physically active university students across different times of day. (randomized trial; participants).
The abstract suggests a positive effect on Sleep quality 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: This study investigated the effects of a single-night sleep extension protocol on physical performance and cognitive function in physically active university students across different times of day.
- • The abstract suggests a positive effect on Sleep quality under the tested conditions.
- • Population: participants.
- • Protocol cues (title/abstract): 55 min • 56.8 min • 64.2 min • 5 m • 9 m.
Protocol
Protocol (as reported)
- • Intervention/exposure: sleep extension, circadian (vs comparison group).
- • Dose/time/duration cues in abstract/title: 55 min • 56.8 min • 64.2 min • 5 m • 9 m.
- • 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 (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: participants.
- • Comparator: comparison group.
- • Outcomes measured: Sleep quality, Recovery speed.
- • Protocol cues mentioned: 55 min • 56.8 min • 64.2 min • 5 m • 9 m.
- • Source: PubMed PMID 40868825 (2025) — Life (Basel, Switzerland).
Results excerpt
What the abstract reports
“93.3 +/- 8.5 m, p < 0.001, d = 0.93; fatigue index: 13.1 +/- 8.3% vs.”
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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