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The Impact of Sleep Duration on Performance Among Competitive Athletes: A Systematic Literature Review.

PMID 29944513 (2020): circadian — Sleep quality, Recovery speed (study note for endurance athletes).

Last updated/Feb 23, 2026, 10:34 PM

Study note • PMID 29944513

The Impact of Sleep Duration on Performance Among Competitive Athletes: A Systematic Literature Review.

Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine2020 • DOI 10.1097/JSM.0000000000000622
Evidence B79/100
Action 1: Default

Low risk + high feasibility for most athletes.

ELI5

In plain language

The athletic advantage of sleep, although commonly touted by coaches, trainers, and sports physicians, is still unclear and likely varies by sport, athletic performance metric, and length of sufficient… (systematic review / meta-analysis; athletes).

In this systematic review / meta-analysis, the abstract reports associations 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: The athletic advantage of sleep, although commonly touted by coaches, trainers, and sports physicians, is still unclear and likely varies by sport, athletic performance metric, and length of sufficient…
  • In this systematic review / meta-analysis, the abstract reports associations involving Sleep quality, Recovery speed (not necessarily causation).
  • Population: athletes.
  • Protocol cues: abstract may omit dose/timing; use the full paper to replicate accurately.

Protocol

Protocol (as reported)

  • Intervention/exposure: circadian.
  • Dose/time/duration: abstract doesn’t include enough detail; use the full paper’s methods section.
  • 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 (athletes) 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: systematic review / meta-analysis.
  • Population: athletes.
  • Outcomes measured: Sleep quality, Recovery speed.
  • Source: PubMed PMID 29944513 (2020) — Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine.

Results excerpt

What the abstract reports

Taken holistically, we find that the sports requiring speed, tactical strategy, and technical skill are most sensitive to sleep duration manipulations.

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).
  • Reviews and consensus statements mix protocols and populations; recommendations may not match your exact constraints.
  • 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