Low-frequency power of heart rate variability is not a measure of cardiac sympathetic tone but may be a measure of modulation of cardiac autonomic outflows by baroreflexes

David S. Goldstein, Oladi Bentho, Mee Yeong Park, Yehonatan Sharabi

Research output: Contribution to journalReview article

356 Scopus citations

Abstract

Power spectral analysis of heart rate variability has often been used to assess cardiac autonomic function; however, the relationship of low-frequency (LF) power of heart rate variability to cardiac sympathetic tone has been unclear. With or without adjustment for high-frequency (HF) power, total power or respiration, LF power seems to provide an index not of cardiac sympathetic tone but of baroreflex function. Manipulations and drugs that change LF power or LF:HF may do so not by affecting cardiac autonomic outflows directly but by affecting modulation of those outflows by baroreflexes.

Original languageEnglish (US)
Pages (from-to)1255-1261
Number of pages7
JournalExperimental Physiology
Volume96
Issue number12
DOIs
StatePublished - Dec 2011

Fingerprint Dive into the research topics of 'Low-frequency power of heart rate variability is not a measure of cardiac sympathetic tone but may be a measure of modulation of cardiac autonomic outflows by baroreflexes'. Together they form a unique fingerprint.

  • Cite this