Evidence map›Paper›PMID 24282215›Full record

ArticleBritish journal of sports medicine2013

The impact of altitude on the sleep of young elite soccer players (ISA3600).

Charli Sargent, 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

Open access · hybridAbstract read
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 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
4.9field-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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 50 citations in OpenAlex.

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  6. 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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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 at 6 institutions in 4 countries.

Charli SargentAppleton 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
Gregory D Roach
Aspire Academy · QAUniversity of Bayreuth · DECentral Queensland University · AUHigher University of San Andrés · BOUniversity of Canberra · AUVictoria University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAltitude training is used by elite athletes to improve sports performance, but it may also disrupt sleep. The aim of this study was to examine the effects of 2 weeks at high altitude on the sleep of young elite athletes.

methodsParticipants (n=10) were members of the Australian under-17 soccer team on an 18-day (19-night) training camp in Bolivia, with six nights at near sea level in Santa Cruz (430 m) and 13 nights at high altitude in La Paz (3600 m). Sleep was monitored using polysomnography during a baseline night at 430 m and three nights at 3600 m (immediately after ascent, 1 week after ascent and 2 weeks after ascent). Data were analysed using effect size statistics.

resultsAll results are reported as comparisons with baseline. Rapid eye movement (REM) sleep was likely lower immediately upon ascent to altitude, possibly lower after 1 week and similar after 2 weeks. On all three nights at altitude, hypopneas and desaturations were almost certainly higher; oxygen saturation was almost certainly lower; and central apnoeas, respiratory arousals and periodic breathing were very likely higher. The effects on REM sleep were common to all but one participant, but the effects on breathing were specific to only half the participants.

conclusionsThe immediate effects of terrestrial altitude of 3600 m are to reduce the amount of REM sleep obtained by young elite athletes, and to cause 50% of them to have impaired breathing during sleep. REM sleep returns to normal after 2 weeks at altitude, but impaired breathing does not improve.

Indexed as

AltitudeAdolescentArousalAustraliaHumansMaleOxygen ConsumptionPolysomnographyRespirationSleepSoccerAltitudeElite performancePhysiologyRespiratorySoccer

Identifiers

PMID24282215
PMCPMC3903148
OpenAlexW2119702281

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.