| Effects of moderate and heavy endurance exercise on nocturnal HRV. | |
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MedLine Citation:
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PMID: 20419617 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study examined the effects of endurance exercise on nocturnal autonomic modulation. Nocturnal R-R intervals were collected after a rest day, after a moderate endurance exercise and after a marathon run in ten healthy, physically active men. Heart rate variability (HRV) was analyzed as a continuous four-hour period starting 30 min after going to bed for sleep. In relation to average nocturnal heart rate after rest day, increases to 109+/-6% and 130+/-11% of baseline were found after moderate endurance exercise and marathon, respectively. Standard deviation of R-R intervals decreased to 90+/-9% and 64+/-10%, root-mean-square of differences between adjacent R-R intervals to 87+/-10% and 55+/-16%, and high frequency power to 77+/-19% and 34+/-19% of baseline after moderate endurance exercise and marathon, respectively. Also nocturnal low frequency power decreased to 56+/-26% of baseline after the marathon. Changes in nocturnal heart rate and HRV suggest prolonged dose-response effects on autonomic modulation after exercises, which may give useful information on the extent of exercise-induced nocturnal autonomic modulation and disturbance to the homeostasis. |
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Authors:
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E Hynynen; V Vesterinen; H Rusko; A Nummela |
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Publication Detail:
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Type: Journal Article Date: 2010-04-23 |
Journal Detail:
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Title: International journal of sports medicine Volume: 31 ISSN: 1439-3964 ISO Abbreviation: Int J Sports Med Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-06-01 Completed Date: 2010-09-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8008349 Medline TA: Int J Sports Med Country: Germany |
Other Details:
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Languages: eng Pagination: 428-32 Citation Subset: IM |
Affiliation:
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KIHU-Research Institute for Olympic Sports, Sports Physiology, Jyväskylä, Finland. esa.hynynen@kihu.fi |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Analysis of Variance Exercise / physiology* Heart Rate / physiology* Homeostasis / physiology Humans Male Physical Endurance / physiology* Running / physiology |
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