Evidence map›Paper›PMID 42109147›Full record

ArticleJournal of sleep research2026

Sleep Health of Athletes of Different Sports: Translation and Validation of the Athlete Sleep Screening Questionnaire to Portuguese.

João Barreira, Júlio A Costa, João Brito, Vasco Cardoso, Cátia Reis

Abstract readValidation Study
In one paragraph

Article in Journal of sleep research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

João BarreiraResearch Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University of Maia, ISMAI, Maia, Portugal.
Júlio A CostaFPF Academy, Portuguese Football Federation, Oeiras, Portugal.
João BritoFPF Academy, Portuguese Football Federation, Oeiras, Portugal.
Vasco CardosoCRC-W Faculdade de Ciências Humanas, Universidade Católica Portuguesa, Lisbon, Portugal.
Cátia ReisCRC-W Faculdade de Ciências Humanas, Universidade Católica Portuguesa, Lisbon, Portugal.

Funding

Portuguese Foundation for Science and Technology through a doctoral grant 2022.09446.BD
6 · The paper itself

Abstract

This study aimed to translate and validate the Athlete Sleep Screening Questionnaire (ASSQ) into Portuguese and assess the sleep health of athletes using the ASSQ. Translation followed established scientific guidelines. A sample of 246 Portuguese athletes from various sports completed the ASSQ, the Pittsburgh Sleep Quality Index (PSQI) and the Reduced Morningness-Eveningness Questionnaire (r-MEQ). Exploratory and confirmatory factor analysis supported two factors for the Sleep Difficulty Score (SDS) and chronotype subscales. Model fit indices indicated excellent fit for SDS and chronotype. Internal consistency was acceptable for SDS (α = 0.58) and chronotype (α = 0.54). Mean SDS was 5.7, and 22% of the sample were found to have sleep problems. Specifically, 16% were classified with moderate sleep problems and 6% with severe sleep problems. No significant differences in SDS categories were found across sex, sports type, sports environment, competitive level or age group. Travel-related sleep disturbances were reported by 20% of athletes, and 11% experienced performance issues after travelling. Chronotype differed by sports type, sports environment, competitive level and age group, but not by SDS categories. Additionally, morning chronotypes reported more travel-related sleep disturbances (p = 0.045). The Portuguese ASSQ showed strong validity and acceptable reliability. Cohort analysis revealed that a substantial proportion of Portuguese athletes reported having sleep problems and some would benefit from specific interventions intended to improve sleep.

Indexed as

AthletesSleepSleep QualitySleep Wake DisordersSportsAdolescentAdultChronotypeFemaleHumansMalePortugalReproducibility of ResultsSurveys and QuestionnairesYoung Adultchronotypehealthmonitoringsportswell‐being

Identifiers

PMID42109147
PMCPMC13619028

What OpenQuestion holds

Textmetadata
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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.