PMID: 6169477Oct 1, 1981Paper

Heart rate variability in healthy subjects measured with a bedside computer-based technique

Clinical Science
S E Smith, S A Smith

Abstract

1. A computer-based technique is described for measuring and analysing cardiac beat-to-beat intervals. 2. The R-R intervals were recorded at rest, during forced deep breathing and during the Valsalva manoeuvre in 174 healthy subjects aged between 16 and 89 years. 3. The mean resting R-R interval was independent of sex, age and smoking habit. The normal range was 654.6-1141.4 ms with a mean value of 864.7 ms. 4. Variation in interval length at rest and during deep breathing depended on age and the mean interval length, whereas the Valsalva ratio depended on age alone. Normal ranges were calculated from regression analysis of these relationships. 5. It is concluded that the technique described can be used to test cardiac autonomic function at the bedside.

Citations

Jan 1, 1993·Scandinavian Journal of Gastroenterology·L S JørgensenH Flachs
Jan 1, 1990·Annals of the New York Academy of Sciences·P KligfieldE M Herrold
Nov 1, 1987·Kidney International·A E DaulO E Brodde
Aug 1, 1983·The American Journal of Medicine·M A PfeiferJ B Halter
Sep 1, 1983·The British Journal of Dermatology·G M MurphyM W Greaves
Mar 1, 1985·Diabetic Medicine : a Journal of the British Diabetic Association·I A O'Brien, R J Corrall
Nov 1, 1984·Diabetic Medicine : a Journal of the British Diabetic Association·S A Smith
Jan 1, 1986·Diabetic Medicine : a Journal of the British Diabetic Association·S A Smith, R R Dewhirst
Dec 1, 1986·British Journal of Clinical Pharmacology·S B Bittiner, S E Smith
Jul 1, 1986·Diabetic Medicine : a Journal of the British Diabetic Association
Jan 1, 1989·Diabetic Medicine : a Journal of the British Diabetic Association·H A NeilJ I Mann
Jan 1, 1994·Environmental Pollution·R LaskowskiM Niklińska
Sep 30, 2000·British Journal of Clinical Pharmacology·W M BanjarE Szabadi
Feb 1, 1996·The Journal of Small Animal Practice·J HäggströmC Kvart
Mar 1, 1995·Neurogastroenterology and Motility : the Official Journal of the European Gastrointestinal Motility Society·V F EckardtG Bernhard
Jun 2, 1986·Klinische Wochenschrift·B GautschyM P Gnädinger
Jun 1, 1991·Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society·S J PihaA Seppänen
Mar 1, 1990·Diabetologia·R E Ryder, C A Hardisty
Jan 1, 1984·European Journal of Applied Physiology and Occupational Physiology·H Warzel, D Krell
Aug 1, 1991·Circulation·A MallianiS Cerutti
Oct 1, 1993·Journal of Neurology, Neurosurgery, and Psychiatry·P J Bacon, S E Smith
Apr 16, 1983·British Medical Journal·A C Flind, J Beresford
Apr 16, 1983·British Medical Journal·W Wieling
Feb 11, 1984·British Medical Journal
Feb 1, 1983·The British Journal of Ophthalmology·S A Smith, S E Smith
Feb 1, 1995·Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society·M Kotamäki
Feb 1, 1995·Clinical Autonomic Research : Official Journal of the Clinical Autonomic Research Society·S J Piha

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