Evidence map›Paper›PMID 41456325›Full record

ArticlePhysiological reports2025

Timing-based strategies to minimize the impact of long-haul travel on sleep: A pilot study in elite athletes traveling for competition.

Giorgio Varesco, Alix Renaud-Roy, François Bieuzen, Nathalie Pattyn, Guido Simonelli

Abstract read
In one paragraph

Article in Physiological reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
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.

Giorgio VarescoNational Institute of Sport of Québec, Montréal, Quebec, Canada.ORCID 0000-0001-9385-6972
Alix Renaud-RoyNational Institute of Sport of Québec, Montréal, Quebec, Canada.
François BieuzenNational Institute of Sport of Québec, Montréal, Quebec, Canada.
Nathalie PattynCenter for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, CIUSSS du Nord de l'Île-de-Montréal, Montréal, Quebec, Canada.
Guido SimonelliCenter for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, CIUSSS du Nord de l'Île-de-Montréal, Montréal, Quebec, Canada.

Funding

FRQS Research Scholar Program 297725Institut national du sport du quebec PRIDI76Mitacs (Mitacs Canada) IT42957
6 · The paper itself

Abstract

Long-haul travel poses significant challenges to sleep in elite athletes, yet evidence-based interventions tested in competitive settings remain scarce. This study investigated the effects of timing-based interventions on sleep in 10 national-level Canadian speed skaters prior to a World Cup competition in Beijing (13 time zones crossed). Athletes followed a tailored sleep schedule upon arrival and for the days preceding the competition. Total sleep time in Beijing was not different from Canada (p = 0.254) or pre-season (p = 0.999) and was lower the night before travel (p < 0.001) due to the early flight to Beijing. When comparing data with a similar dataset presenting no intervention, bedtime was successfully delayed and resulted in later wake-up time and longer total sleep time. Total sleep time increased by ~10 min/night, suggesting adjustments in sleep-wake rhythm during the first days upon arrival were still present. Race performance was unaffected by travel, with no time effect on overall rank (p = 0.74). These preliminary findings suggest that individualized timing-based strategies might support sleep regulation and circadian re-synchronization in elite athletes following long-haul travel. Further studies are warranted to confirm these results in larger samples and explore the effectiveness of customized timing-based intervention on different time changes and on performance.

Indexed as

AthletesAthletic PerformanceSleepTravelAdultCircadian RhythmCompetitive BehaviorFemaleHumansMalePilot ProjectsTime FactorsYoung Adultelite performancejetlaglong‐haul travelsleep strategyspeed‐skatingzeitgebers

Identifiers

PMID41456325
PMCPMC12744891

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Registered trials

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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.