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Physiological and a...
Physiological and autonomic stress responses after prolonged sleep restriction and subsequent recovery sleep in healthy young men
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- van Leeuwen, Wessel M. A. (author)
- Stockholms universitet,Stressforskningsinstitutet,University of Helsinki, Finland; Finnish Institute of Occupational Health, Finland
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Sallinen, Mikael (author)
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Virkkala, Jussi (author)
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Lindholm, Harri (author)
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Hirvonen, Ari (author)
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Hublin, Christer (author)
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Porkka-Heiskanen, Tarja (author)
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Härmä, Mikko (author)
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(creator_code:org_t)
- 2017-09-08
- 2018
- English.
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In: Sleep and Biological Rhythms. - : Springer Science and Business Media LLC. - 1446-9235 .- 1479-8425. ; 16:1, s. 45-54
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Abstract
Subject headings
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- PurposeSleep restriction is increasingly common and associated with the development of health problems. We investigated how the neuroendocrine stress systems respond to prolonged sleep restriction and subsequent recovery sleep in healthy young men.MethodsAfter two baseline (BL) nights of 8 h time in bed (TIB), TIB was restricted to 4 h per night for five nights (sleep restriction, SR, n = 15), followed by three recovery nights (REC) of 8 h TIB, representing a busy workweek and a recovery weekend. The control group (n = 8) had 8 h TIB throughout the experiment. A variety of autonomic cardiovascular parameters, together with salivary neuropeptide Y (NPY) and cortisol levels, were assessed.ResultsIn the control group, none of the parameters changed. In the experimental group, heart rate increased from 60 ± 1.8 beats per minute (bpm) at BL, to 63 ± 1.1 bpm after SR and further to 65 ± 1.8 bpm after REC. In addition, whole day low-frequency to-high frequency (LF/HF) power ratio of heart rate variability increased from 4.6 ± 0.4 at BL to 6.0 ± 0.6 after SR. Other parameters, including salivary NPY and cortisol levels, remained unaffected.ConclusionsIncreased heart rate and LF/HF power ratio are early signs of an increased sympathetic activity after prolonged sleep restriction. To reliably interpret the clinical significance of these early signs of physiological stress, a follow-up study would be needed to evaluate if the stress responses escalate and lead to more unfavourable reactions, such as elevated blood pressure and a subsequent elevated risk for cardiovascular health problems.
Subject headings
- SAMHÄLLSVETENSKAP -- Psykologi -- Tillämpad psykologi (hsv//swe)
- SOCIAL SCIENCES -- Psychology -- Applied Psychology (hsv//eng)
Keyword
- Sleep restriction
- Autonomic nervous system
- HPA-axis
- Cortisol
- Heart rate variability
Publication and Content Type
- ref (subject category)
- art (subject category)
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