Evidence map›Paper›PMID 24282197›Full record

ArticleBritish journal of sports medicine2013

The sleep of elite athletes at sea level and high altitude: a comparison of sea-level natives and high-altitude natives (ISA3600).

Gregory D Roach, Walter F Schmidt, Robert J Aughey, Pitre C Bourdon, Rudy Soria, Jesus C Jimenez Claros, Laura A Garvican-Lewis, Martin Buchheit, Ben M Simpson, Kristal Hammond and 4 more

Abstract readComparative Study
In one paragraph

Article in British journal of sports medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
–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

22 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  13. The Impact of a 14-Day Altitude Training Camp on Olympic-Level Open-Water Swimmers' Sleep.International journal of environmental research and public health · 2022
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  17. Comparison of Subjective Sleep Quality of Long-Term Residents at Low and High Altitudes: SARAHA Study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2018
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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

14 authors.

Gregory D RoachAppleton Institute for Behavioural Science, Central Queensland University, , Adelaide, Australia.
Walter F Schmidt
Robert J Aughey
Pitre C Bourdon
Rudy Soria
Jesus C Jimenez Claros
Laura A Garvican-Lewis
Martin Buchheit
Ben M Simpson
Kristal Hammond
Marlen Kley
Nadine Wachsmuth
Christopher J Gore
Charli Sargent

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAltitude exposure causes acute sleep disruption in non-athletes, but little is known about its effects in elite athletes. The aim of this study was to examine the effects of altitude on two groups of elite athletes, that is, sea-level natives and high-altitude natives.

methodsSea-level natives were members of the Australian under-17 soccer team (n=14). High-altitude natives were members of a Bolivian under-20 club team (n=12). Teams participated in an 18-day (19 nights) training camp in Bolivia, with 6 nights at near sea level in Santa Cruz (430 m) and 13 nights at high altitude in La Paz (3600 m). Sleep was assessed on every day/night using activity monitors.

resultsThe Australians' sleep was shorter, and of poorer quality, on the first night at altitude compared with sea level. Sleep quality returned to normal by the end of the first week at altitude, but sleep quantity had still not stabilised at its normal level after 2 weeks. The quantity and quality of sleep obtained by the Bolivians was similar, or greater, on all nights at altitude compared with sea level. The Australians tended to obtain more sleep than the Bolivians at sea level and altitude, but the quality of the Bolivians' sleep tended to be better than that of the Australians at altitude.

conclusionsExposure to high altitude causes acute and chronic disruption to the sleep of elite athletes who are sea-level natives, but it does not affect the sleep of elite athletes who are high-altitude natives.

Indexed as

AltitudeAdolescentAustraliaBoliviaHumansMaleSleepSoccerTravelAltitudeElite performancePhysiologySoccer

Identifiers

PMID24282197
PMCPMC3903309

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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.