Evidence map›Paper›PMID 37700141›Full record

SynthesisSports medicine (Auckland, N.Z.)2024

The Impact of Daytime Napping Following Normal Night-Time Sleep on Physical Performance: A Systematic Review, Meta-analysis and Meta-regression.

Omar Boukhris, Khaled Trabelsi, Haresh Suppiah, Achraf Ammar, Cain C T Clark, Haitham Jahrami, Hamdi Chtourou, Matthew Driller

Open access · hybridAbstract readSystematic ReviewMeta-Analysis
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Sports medicine (Auckland, N.Z.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
7.6field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 5 countries.

Omar BoukhrisSIESTA Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia. o.boukhris@latrobe.edu.au.ORCID 0000-0002-2861-0164
Khaled TrabelsiSIESTA Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia.
Haresh SuppiahSIESTA Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia.
Achraf AmmarDepartment of Training and Movement Science, Institute of Sport Science, Johannes Gutenberg-University Mainz, Mainz, Germany.
Cain C T ClarkCentre for Intelligent Healthcare, Coventry University, Coventry, UK.
Haitham JahramiDepartment of Psychiatry, Ministry of Health, Manama, Bahrain.
Hamdi ChtourouSIESTA Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia.
Matthew DrillerSIESTA Research Group, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Australia.
La Trobe University · AUUniversity of Sfax · TNIntelligent Health (United Kingdom) · GBJohannes Gutenberg University Mainz · DEMinistry of Health · BH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDaytime napping is used by athletes as a strategy to supplement night time sleep and aid physical performance. However, no meta-analytical overview regarding the impact of napping following a night of normal sleep (7-9 h) on physical performance is available.

objectiveThe aim of this study was to evaluate the effect of daytime napping following normal night-time sleep on physical performance in physically active individuals and athletes.

methodsThis systematic review and meta-analysis was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. Seven electronic databases (i.e., PubMed, Web of Science, Scopus, SPORTDiscus, CINAHL, SCIELO, and EBSCOhost) were used to search for relevant studies that investigated the impact of daytime napping, following normal night-time sleep, on physical performance in physically active individuals and athletes, published in any language, and available before September 01, 2022. Studies that included assessments of any physical performance measures were included. QualSyst was used to assess the methodological quality of the studies.

resultsOf 18 selected articles, 15 were of strong quality and 3 were of moderate quality. Compared with no-nap conditions, physically active individuals and athletes who napped experienced an increase in highest distance (effect size [ES] 1.026; p < 0.001) and total distance (ES 0.737; p < 0.001), and a decrease in fatigue index (ES 0.839, p = 0.008) during the 5-m shuttle run test (5MSRT). However, napping yielded no effect on muscle force (ES 0.175; p = 0.267). No effect of napping was found in one study that measured sprint performance and in two studies that measured performance during the 30-s Wingate test. Two of three studies reported an increase in jump performance after napping. Two of three studies reported an increase in repeated sprints after napping. One study reported an increase in upper-body power performance after napping, and napping was beneficial for endurance performance in one of two studies.

conclusionFollowing normal sleep, napping is beneficial for the performance of the 5MSRT, with no significant effect on muscle force. No firm conclusions can be drawn regarding other physical performance measures due to the limited number of studies.

Indexed as

Athletic PerformanceSleepAthletesHumansPhysical Endurance

Identifiers

PMID37700141
PMCPMC10933197
OpenAlexW4386691527

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.