Respiration response curve analysis of heart rate variability

Document Type

Article

Publication Date

4-15-1997

Abstract

A noninvasive study was conducted on intact awake humans to characterize the dynamic response of the heart to the vagus during slow-, comfortable-, and fast-paced respiration (8, 12, and 18 breaths/min) under both sitting and standing conditions. The respiration response curve (RRC) of respiration- associated vagal effects on the heart was estimated, and characteristics of entrainment and frequency dependence on respiration were demonstrated. It was shown that the degree of entrainment and magnitude of phase resetting decrease with increase of pacing rate from 8 to 18 breaths/min. Further, the RRC was examined by overlapping equivalent phase shifts in different respiration cycles. This examination of the RRC can help us not only to find the common pattern underlying the RRC during different respiration cycles but also to perceive its variation related to degree of entrainment.

Identifier

0030966835 (Scopus)

Publication Title

IEEE Transactions on Biomedical Engineering

External Full Text Location

https://doi.org/10.1109/10.563302

ISSN

00189294

PubMed ID

9125815

First Page

321

Last Page

325

Issue

4

Volume

44

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