Evidence map›Paper›PMID 38589752›Full record

ArticleSports medicine - open2024

Sleep and Ultramarathon: Exploring Patterns, Strategies, and Repercussions of 1,154 Mountain Ultramarathons Finishers.

Anthony Kishi, Guillaume Y Millet, Matthieu Desplan, Bruno Lemarchand, Nicolas Bouscaren

Open access · goldAbstract read
In one paragraph

Article in Sports medicine - open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 5% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Female trail running: a systematic scoping review.Frontiers in sports and active living · 2025
    Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
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  7. Article
  8. Article
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  10. Article
  11. Impact of extreme physical exercise (28 consecutive marathons) on sleep time and structure.International journal of clinical and health psychology : IJCHP
    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 at 2 institutions in 2 countries.

Anthony KishiUnité Fonctionnelle de Médecine du Sport, CHU de la Réunion, Site Hôpital de Saint-Pierre, BP 350, Saint-Pierre, 97448, France.
Guillaume Y MilletInter-university Laboratory of Human Movement Biology, Univ Lyon, UJM-Saint-Etienne, Saint-Etienne, 7424, F-42023, EA, France.
Matthieu DesplanBe Sports Clinic, Centre Médical Médimarien, Schaerbeek, 1030, Belgique.
Bruno LemarchandUnité Fonctionnelle de Médecine du Sport, CHU de la Réunion, Site Hôpital de Saint-Pierre, BP 350, Saint-Pierre, 97448, France.
Nicolas BouscarenInter-university Laboratory of Human Movement Biology, Univ Lyon, UJM-Saint-Etienne, Saint-Etienne, 7424, F-42023, EA, France. n.bouscaren@gmail.com.ORCID http://orcid.org/0000-0001-9853-098X
Peuplements végétaux et bioagresseurs en milieu tropical · REUniversité Claude Bernard Lyon 1 · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSleep and physical performance are strongly related and mutually influence each other. Athletes, particularly in disciplines like offshore sailing and ultra-endurance sports, often suffer from sleep deprivation due to factors like irregular training times, travel, and the extended duration of events like 100-mile mountain races. Despite growing interest in sleep's role in sports science, few studies have specifically investigated the sleep patterns of ultramarathon runners. This study aimed to investigate sleep patterns and sleep management strategies in ultramarathons, and the repercussions of sleep deprivation during and after races.

methodsThis cross-sectional study using e-survey was conducted on 1154 runners from two ultramarathons (a 165 km race with 9,576 m positive elevation; 2018 finish time [23:18:48-66:04:00], and a 111 km race with 6,433 m elevation; [15:34:56 - 41:54:16]).

resultsThe results revealed that 58% of the runners reported implementing sleep management strategies before or during the race. Most runners began the race with some level of sleep debt (-50 min a week before the race). During the races, 77% of runners slept, with the cumulative sleep duration varying based on race duration and the number of nights spent on the race (76 min at 165 km and 27 min at 111 km). Short naps lasting less than 30 min were the most popular strategy. The prevalence of symptoms attributed to sleep deprivation during the race was high (80%), with reported falls and hallucinations. After the race, runners reported recovering a normal state of wakefulness relatively quickly (within two days); 22% believed that sleep deprivation during the race increased the risk of accidents in everyday life.

conclusionThis study provides valuable insights into sleep patterns and strategies in ultramarathon running and emphasizes the importance of adequate sleep management for performance and post-race recovery.

Indexed as

Mountain ultramarathonNappingSleep deprivationSleep patternVigilance

Identifiers

PMID38589752
PMCPMC11001838
OpenAlexW4394582131

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.