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. 1977 Jan;39(1):25–28. doi: 10.1136/hrt.39.1.25

Assessment of vagal control of the heart in diabetes. Measures of R-R interval variation under different conditions.

T Bennett, P H Fentem, D Fitton, J R Hampton, D J Hosking, P A Riggott
PMCID: PMC483189  PMID: 556668

Abstract

R-R intervals and R-R interval variation were measured in 2 selected groups of diabetic subjects; 1 group was selected because vagal control of the heart appeared normal, the other group was selected because they lacked vagal control of the heart. The means of the R-R intervals for the 2 groups were not significantly different under various conditions (sleeping, lying, during deep breathing, sitting, standing, and during upright activity). The standard deviations of the R-R intervals for the 2 groups were only significantly different during deep breathing and upright activity. It is suggested that cardiac vagal function is not reliably assessed by measurement of R-R interval variation during quiet standing, but useful information may be obtained during deep breathing.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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