Document Detail

Effects of lumbar skin warming on gastric motility and blood pressure in humans.
MedLine Citation:
PMID:  12689357     Owner:  NLM     Status:  MEDLINE    
We examined the possibility that lumbar skin warming can increase gastrointestinal motility by investigating the electrogastrogram (EGG), blood pressure, and heart rate with psychometric ratings in healthy humans. Scores of mood state profiles showed that lumbar skin warming (42 degrees C, 20 min) decreased tension-anxiety, depression, anger-hostility, fatigue, and confusion of the participants. A multiple bandpass filter analysis of EGGs showed that a postural transition from orthostatic to supine for measurement caused an increase in dominant frequency of 25-29% towards the frequencies of the normal interdigestive migrating motor complex (IMC). The spectral power of the IMC band, 2.55-3.05 cycles/min, was increased by 20 min-warming, reflecting the increase in gastric contractility. No increase in the spectral power was observed in the time-matched control group without skin warming. Therefore, an increase in contractility is a characteristic of lumbar skin warming. The systolic blood pressure increased by 15% during warm stimulation. Interbeat intervals were not influenced by warm stimulation. An analysis of interbeat intervals by a fast Fourier transform method showed that the cardiac sympathetic and parasympathetic nerves did not play a major role in raising the blood pressure. Vasoconstriction of the mesenteric artery was therefore considered to cause a blood pressure increase during warming. It is hypothesized that vasoconstriction of the visceral arteries by lumbar skin warming increases the blood pressure and gastrointestinal contractility.
Masanori Nagai; Maki Wada; Yumie Kobayashi; Shinobu Togawa
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Japanese journal of physiology     Volume:  53     ISSN:  0021-521X     ISO Abbreviation:  Jpn. J. Physiol.     Publication Date:  2003 Feb 
Date Detail:
Created Date:  2003-04-11     Completed Date:  2004-01-09     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  2985184R     Medline TA:  Jpn J Physiol     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  45-51     Citation Subset:  IM    
Department of Physiology, Yamanashi Institute of Environmental Sciences, Kenmarubi 5597-1, Fujiyoshida, 403-0005 Japan.
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MeSH Terms
Blood Pressure / physiology
Electromyography / methods*
Gastrointestinal Motility / physiology*,  radiation effects*
Heart Rate / physiology
Hot Temperature*
Lumbar Vertebrae / physiology
Muscle Contraction / physiology*
Posture / physiology
Psychometrics / methods
Skin Temperature / physiology*,  radiation effects

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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