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Total Sleep Deprivation and Recovery Sleep Affect the Diurnal Variation of Agility Performance: The Gender Differences.

PMID 29864109 (2021): sleep extension, sleep deprivation — Sleep quality, Recovery speed (study note for endurance athletes).

Last updated/Feb 23, 2026, 11:13 PM

Study note • PMID 29864109

Total Sleep Deprivation and Recovery Sleep Affect the Diurnal Variation of Agility Performance: The Gender Differences.

Journal of strength and conditioning research2021 • DOI 10.1519/JSC.0000000000002614
Evidence C56/100
Action 2: Consider

Worth trying if it fits your goal and context.

ELI5

In plain language

Romdhani, M, Hammouda, O, Smari, K, Chaabouni, Y, Mahdouani, K, Driss, T, and Souissi, N. (controlled study; participants).

Effects on Sleep quality, Recovery speed 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: Romdhani, M, Hammouda, O, Smari, K, Chaabouni, Y, Mahdouani, K, Driss, T, and Souissi, N.
  • Effects on Sleep quality, Recovery speed are mixed or unclear from the abstract alone.
  • Population: participants.
  • Protocol cues (title/abstract): 36 hours • 00 hours.

Protocol

Protocol (as reported)

  • Intervention/exposure: sleep extension, sleep deprivation (vs comparison group).
  • Dose/time/duration cues in abstract/title: 36 hours • 00 hours.
  • Outcomes: Sleep quality, Recovery speed.
  • 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 (participants) working on sleep.
  • Athletes who can measure Sleep quality, Recovery speed 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: participants.
  • Comparator: comparison group.
  • Outcomes measured: Sleep quality, Recovery speed.
  • Protocol cues mentioned: 36 hours • 00 hours.
  • Source: PubMed PMID 29864109 (2021) — Journal of strength and conditioning research.

Results excerpt

What the abstract reports

Female subjects' PT was less affected by 24-hour TSD (1.76 vs.

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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Sources