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dc.contributor.authorHrozanova, Maria
dc.contributor.authorKjøsen Talsnes, Rune
dc.contributor.authorKarlsson, Øyvind
dc.contributor.authorMcGawley, Kerry
dc.contributor.authorMoen, Frode
dc.date.accessioned2021-11-26T09:37:22Z
dc.date.available2021-11-26T09:37:22Z
dc.date.issued2021-10-09
dc.description.abstractObjectives - To observe changes in sleep from baseline and during an altitude training camp in elite endurance athletes.<p> <p>Design - Prospective, observational.<p> <p>Setting - Baseline monitoring at <500 m for 2 weeks and altitude monitoring at 1800 m for 17-22 days.<p> <p>Participants - Thirty-three senior national-team endurance athletes (mean age 25.8 ± S.D. 2.8 years, 16 women).<p> <p>Measurements - Daily measurements of sleep (using a microwave Doppler radar at baseline and altitude), oxygen saturation (SpO2), training load and subjective recovery (at altitude).<p> <p>Results - At altitude vs. baseline, sleep duration (P = .036) and light sleep (P < .001) decreased, while deep sleep (P < .001) and respiration rate (P = .020) increased. During the first altitude week vs. baseline, deep sleep increased (P = .001). During the first vs. the second and third altitude weeks, time in bed (P = .005), sleep duration (P = .001), and light sleep (P < .001) decreased. Generally, increased SpO2 was associated with increased deep sleep while increased training load was associated with increased respiration rate.<p> <p>Conclusion - This is the first study to document changes in sleep from near-sea-level baseline and during a training camp at 1800 m in elite endurance athletes. Ascending to altitude reduced total sleep time and light sleep, while deep sleep and respiration rate increased. SpO2 and training load at altitude were associated with these responses. This research informs our understanding of the changes in sleep occurring in elite endurance athletes attending training camps at competition altitudes.en_US
dc.identifier.citationHrozanova M, Kjøsen Talsnes RK, Karlsson Ø, McGawley K, Moen F. An observational study of sleep characteristics in elite endurance athletes during an altitude training camp at 1800 m. Sleep Health. 2021en_US
dc.identifier.cristinIDFRIDAID 1948918
dc.identifier.doihttps://doi.org/10.1016/j.sleh.2021.08.007
dc.identifier.issn2352-7218
dc.identifier.issn2352-7226
dc.identifier.urihttps://hdl.handle.net/10037/23179
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalSleep Health
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2021 The Author(s)en_US
dc.subjectVDP::Medical disciplines: 700::Sports medicine: 850en_US
dc.subjectVDP::Medisinske Fag: 700::Idrettsmedisinske fag: 850en_US
dc.titleAn observational study of sleep characteristics in elite endurance athletes during an altitude training camp at 1800 men_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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