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Short sleep-poor sl...
Short sleep-poor sleep? A polysomnographic study in a large population-based sample of women
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- Åkerstedt, Torbjorn (author)
- Karolinska Institutet,Stockholms universitet,Stressforskningsinstitutet,Karolinska Institute, Sweden,Karolinska Inst, Dept Clin Neurosci, Stockholm, Sweden;Stockholm Univ, Stress Res Inst, Stockholm, Sweden
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- Schwarz, Johanna (author)
- Karolinska Institutet,Stockholms universitet,Stressforskningsinstitutet,Karolinska Institute, Sweden,Karolinska Inst, Dept Clin Neurosci, Stockholm, Sweden;Stockholm Univ, Stress Res Inst, Stockholm, Sweden
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- Gruber, Georg (author)
- Siesta Grp, Vienna, Austria
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- Theorell-Haglöw, Jenny (author)
- Uppsala universitet,Lung- allergi- och sömnforskning
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- Lindberg, Eva (author)
- Uppsala universitet,Lung- allergi- och sömnforskning
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(creator_code:org_t)
- 2019-01-04
- 2019
- English.
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In: Journal of Sleep Research. - : Wiley. - 0962-1105 .- 1365-2869. ; 28:4
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Abstract
Subject headings
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- There is a lack of studies on the association between total sleep time (TST) and other polysomnographical parameters. A key question is whether a short sleep is an expression of habitual short sleep, or whether it reflects temporary impairment. The purpose of the present study was to investigate the association between TST and amount of sleep stages and sleep continuity measures, in a large population-based sample of women (n = 385), sleeping at home in a normal daily life setting. The results show that sleep efficiency, N1 (min), N2 (min), REM (min), REM% and proportion of long sleep segments, increased with increasing TST, whereas the number of awakenings/hr, the number of arousals/hr, N1% and REM intensity decreased. In addition, longer sleep was more associated with TST being perceived as of usual duration and with better subjective sleep quality. TST was not associated with habitual reported sleep duration. It was concluded that short TST of a recorded sleep in a real-life context may be an indicator of poor objective sleep quality for that particular sleep episode. Because individuals clearly perceived this reduction, it appears that self-reports of poor sleep quality often may be seen as indicators of poor sleep quality. It is also concluded that PSG-recorded sleep duration does not reflect habitual reported sleep duration in the present real-life context.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
- SAMHÄLLSVETENSKAP -- Psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Lungmedicin och allergi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Respiratory Medicine and Allergy (hsv//eng)
Keyword
- delta dominance
- REM density
- REM intensity
- sleep spindles
Publication and Content Type
- ref (subject category)
- art (subject category)
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