Cited by 185Sleep and related disordersSleep and Wakefulness ResearchSleep and Work-Related Fatigue

Increased slow wave sleep and reduced stage 2 sleep in children depending on exercise intensity

Dworak, Markus, Wiater, Alfred, Alfer, Dirk, Stephan, Egon, Hollmann, Wildor, Strüder, Heiko K.·2008·Sleep Medicine

Abstract

Background There is controversy about the consequences of physical exercise on human sleeping behaviors. Evidence suggests that voluntary physical exercise affects brain structures and functions. However, there are inconsistent data regarding the effects of exercise on sleep architecture and sleep continuity, especially the amounts of slow wave sleep (SWS) and rapid eye movement (REM) sleep.Objective The aim of the present study was to investigate the effects of moderate and high intense physical exercise on vigilance state and sleep patterns in school-aged children.Methods Eleven healthy children (12.6+/-0.8 years old) were recruited for this polysomnographic study and underwent two exercise sessions. The two exercise sessions on a bicycle ergometer were performed 3-4h prior to bedtime, lasted 30min and varied in intensity. The moderate-intensity exercise was at 65-70% of maximal heart rate (HR(max)) while the high-intensity exercise was at 85-90% HR(max) to exhaustion. Polysomnographic and physiological measurements, including oximetry, were made on three nights in random order and separated by 1 week. Vigilance tests were carried out before and after the three sleep periods.Results Only high-intensity exercise resulted in a significantly elevated SWS proportion and less sleep in stage 2 as well as a higher sleep efficiency and shorter sleep onset latency. No significant effects on REM sleep were found.Conclusion The results suggest that exercise intensity is responsible for the effects on stage 2 sleep and SWS in children and support the hypothesis of homeostatic sleep regulation.

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Crossref · 10.1016/j.sleep.2007.04.017

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Authors
Dworak, M., Wiater, A., Alfer, D., Stephan, E., Hollmann, W., & Strüder, H. K.
Affiliations
  • German Sport University Cologne (DE)
  • Krankenhaus Porz am Rhein (DE)
  • University of Cologne (DE)
Corresponding author
Dworak, Markus
Venue
Sleep Medicine
Publisher
Elsevier BV
Published
2008-03
Volume
9
Issue
3
Pages
266-272
ISSN
1389-9457 (ISSN-L)
OpenAlex
W2029364875
Cited by
185
References
43
Citations by year
2026: 7 · 2025: 10 · 2024: 14 · 2023: 9 · 2022: 14 · 2021: 12 · 2020: 20 · 2019: 10 · 2018: 15 · 2017: 7 · 2016: 4 · 2015: 10 · 2014: 10 · 2013: 10 · 2012: 8
FWCI
8.56
Type
journal article
Language
en
Open access
closed
Locations
  • Sleep Medicine (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
physical activity, exercise intensity, slow-wave sleep, stage 2 sleep, REM sleep, sleep architecture, sleep efficiency, sleep latency, children, sleep homeostasis, sustained attention, cycle ergometer
MeSH terms
Adolescent, Cerebral Cortex, Child, Exercise Test, Female, Homeostasis, Humans, Male, Reference Values, Sleep, Sleep, REM, Exercise, Polysomnography

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