ArticleSleep advances : a journal of the Sleep Research Society2025
Sleep and nocturnal breathing of individuals working over 1-week periods at high altitude: a cross-sectional polysomnographic study.
Article in Sleep advances : a journal of the Sleep Research Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Improving adaptation in male high-altitude workers through pressurization: a randomized controlled trial on sleep architecture.International archives of occupational and environmental health · 2026Trial
- Intermittent exposure to high-altitude work: nocturnal hypoxemia sea-level anthropometric and biochemical markers.Sleep & breathing = Schlaf & Atmung · 2026Article
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12 authors.
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Abstract
Study Objectives: To investigate objective sleep architectures, sleep fragmentation, and sleep-disordered breathing (SDB) indices in high-altitude workers rotating a week of altitude followed by a week of rest schedules from the Atacama Large Millimeter Array (ALMA) Observatory, Atacama, Chile. Methods: A total of 122 high-altitude workers (males/females: 70/52) completed a polysomnographic sleep study at the Operation Support Facility (OSF, 2950 m). The majority of the participants (78 [63.9%]) were low-altitude residents. Most of the workers (74 [60.7%]) worked at the Array Operation Site (AOS) at 5050 m (work high) during the day and returned to the OSF to sleep (sleep lower). Results: The ALMA workers had a sleep efficiency of 83.2 ± 10.3%, with a total sleep time of 352.2 ± 84.8 minutes. Sleep latency was 16.5 ± 19.3 minutes, and wake after sleep onset was 62.6 ± 56.5 minutes. The odds ratio product (ORP) showed that a quarter of altitude workers ( Conclusions: High-altitude workers had less deep sleep and high fragmented sleep. Further, they had high sleep apnea and oxygen desaturation indices. The workers who had sleep studies in the latter part of the work week had better sleep indices compared to the workers who had sleep studies on the first and second nights at altitude. The SDB indices were positively associated with the years of working at altitude.
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