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

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posted on 06.12.2017, 00:00 by Gregory RoachGregory Roach, W Schmidt, M Kley, N Wachsmuth, C Gore, Charli SargentCharli Sargent, R Aughey, P Bourdon, R Soria, J Claros
Background Altitude 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. Methods Sea-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. Results The 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. Conclusions Exposure 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.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

47

Issue

suppl1

Start Page

114

End Page

120

Number of Pages

7

ISSN

0306-3674

Location

United Kingdom

Publisher

BMA Group

Language

en-aus

Peer Reviewed

Yes

Open Access

Yes

External Author Affiliations

ASPIRE Academy for Sports Excellence; Appleton Institute for Behavioural Sciences; Appleton Institute for Behavioural Sciences; Australian Institute of Sport; Flinders University; Universidad Mayor de San Andres; Universidad Mayor de San Andres; University of Canberra; Universität Bayreuth; Victoria University (Melbourne, Vic.); Western Bulldogs Football Club (Melbourne, Victoria);

Era Eligible

Yes

Journal

British journal of sports medicine.

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